1424 Logic and Fear

Should this puzzle excite fear in you or anyone else? The logical answer is no, of course not. Logic can also help you to find the solution, so don’t be afraid, give it a try! Finding the factors of 1429 shouldn’t bring fear to you either:

• 1424 is a composite number.
• Prime factorization: 1424 = 2 × 2 × 2 × 2 × 89, which can be written 1424 = 2⁴ × 89
• 1424 has at least one exponent greater than 1 in its prime factorization so √1424 can be simplified. Taking the factor pair from the factor pair table below with the largest square number factor, we get √1424 = (√16)(√89) = 4√89
• The exponents in the prime factorization are 4 and 1. Adding one to each exponent and multiplying we get (4 + 1)(1 + 1) = 5 × 2 = 10. Therefore 1424 has exactly 10 factors.
• The factors of 1424 are outlined with their factor pair partners in the graphic below. 1424 is the sum of two squares:
32² + 20² = 1424

1424 is the hypotenuse of a Pythagorean triple:
624-1280-1424 calculated from 32² – 20², 2(32)(20), 32² + 20²

1422 Candy Corn Mystery

You can begin this candy corn puzzle easily enough, but the logic needed to solve it is a bit complicated. Good luck with this one! Now I’ll tell you some facts about the puzzle number, 1422:

• 1422 is a composite number.
• Prime factorization: 1422 = 2 × 3 × 3 × 79, which can be written 1422 = 2 × 3² × 79
• 1422 has at least one exponent greater than 1 in its prime factorization so √1422 can be simplified. Taking the factor pair from the factor pair table below with the largest square number factor, we get √1422 = (√9)(√158) = 3√158
• The exponents in the prime factorization are 1, 2, and 1. Adding one to each exponent and multiplying we get (1 + 1)(2 + 1)(1 + 1) = 2 × 3 × 2 = 12. Therefore 1422 has exactly 12 factors.
• The factors of 1422 are outlined with their factor pair partners in the graphic below. 1422 is palindrome 1K1 in BASE 29 (K is 20 base 10)
because 1(29²) + 20(29¹) + 1(29º) = 1422.

1421 Square-shaped Sweet

This square-shaped puzzle is a Level 3 because you can start with clue 44 and work down the puzzle cell by cell to find the solution. You won’t get into a rhythm with this one, but logic will still help you to find the factors of the clues in order from top to bottom. That’s pretty sweet! Now here are some sweet facts about the puzzle number 1421:

• 1421 is a composite number.
• Prime factorization: 1421 = 7 × 7 × 29, which can be written 1421 = 7² × 29
• 1421 has at least one exponent greater than 1 in its prime factorization so √1421 can be simplified. Taking the factor pair from the factor pair table below with the largest square number factor, we get √1421 = (√49)(√29) = 7√29
• The exponents in the prime factorization are 2 and 1. Adding one to each exponent and multiplying we get (2 + 1)(1 + 1) = 3 × 2 = 6. Therefore 1421 has exactly 6 factors.
• The factors of 1421 are outlined with their factor pair partners in the graphic below. 1421 is also the hypotenuse of a Pythagorean triple:
980-1029-1421 which is (20-21-29) times 49.

1420 Eight-legged Creature

When you look at today’s puzzle, you might see a snowflake or perhaps an eight-legged creature. I hope you will also see lots of common factors that will help you solve this quick puzzle. Here are some facts about the puzzle number, 1420:

• 1420 is a composite number.
• Prime factorization: 1420 = 2 × 2 × 5 × 71, which can be written 1420 = 2² × 5 × 71
• 1420 has at least one exponent greater than 1 in its prime factorization so √1420 can be simplified. Taking the factor pair from the factor pair table below with the largest square number factor, we get √1420 = (√4)(√355) = 2√355
• The exponents in the prime factorization are 2, 1, and 1. Adding one to each exponent and multiplying we get (2 + 1)(1 + 1)(1 + 1) = 3 × 2 × 2 = 12. Therefore 1420 has exactly 12 factors.
• The factors of 1420 are outlined with their factor pair partners in the graphic below. 1420 is the hypotenuse of a Pythagorean triple:
852-1136-1420 which is (3-4-5) times 284.

1419 and Level 1

This Level 1 Find the Factors 1-12 puzzle is as simple as clockwork. Can you find all the factors? Now I’ll tell you a few things about the puzzle number, 1419:

• 1419 is a composite number.
• Prime factorization: 1419 = 3 × 11 × 43
• 1419 has no exponents greater than 1 in its prime factorization, so √1419 cannot be simplified.
• The exponents in the prime factorization are 1, 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1)(1 + 1) = 2 × 2 × 2 = 8. Therefore 1419 has exactly 8 factors.
• The factors of 1419 are outlined with their factor pair partners in the graphic below. 1419 is the difference of two squares in four different ways:
710² – 709² = 1419
238² – 235² = 1419
70² – 59² = 1419
38² – 5² = 1419

That last one means we are only 25 numbers away from the next perfect square, and that seems like clockwork, too.

1419 is only the second Zeisel number: (105 was the first.)
(4×1-1)(4×3-1)(4×11-1) = 3×11×43 =1419

1418 Challenge Puzzle

The 19 clues in this Find the Factors Challenge Puzzle are enough to find its unique solution. Can you find it? Print the puzzles or type the solution in this excel file: 10 Factors 1410-1418

Now I’ll write a few facts about the puzzle number, 1418:

• 1418 is a composite number.
• Prime factorization: 1418 = 2 × 709
• 1418 has no exponents greater than 1 in its prime factorization, so √1418 cannot be simplified.
• The exponents in the prime factorization are 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1) = 2 × 2 = 4. Therefore 1418 has exactly 4 factors.
• The factors of 1418 are outlined with their factor pair partners in the graphic below. 1418 is the sum of two squares:
37² + 7² = 1418

518-1320-1418 calculated from 2(37)(7), 37² – 7², 37² + 7².
It is also 2 times (259-660-709)

1417 Mystery Puzzle

How hard is today’s puzzle? It’s a little harder just because I’m not telling what the level number is. Are you going to let that stop you from finding the unique solution? I hope not! Print the puzzles or type the solution in this excel file: 10 Factors 1410-1418

1417 is just the puzzle number, but in case you want to know something about it, here are some facts:

• 1415 is a composite number.
• Prime factorization: 1415 = 13 × 109
• 1415 has no exponents greater than 1 in its prime factorization, so √1415 cannot be simplified.
• The exponents in the prime factorization are 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1) = 2 × 2 = 4. Therefore 1415 has exactly 4 factors.
• The factors of 1415 are outlined with their factor pair partners in the graphic below. 1417 is the sum of two squares in two different ways:
29² + 24² = 1417
36² + 11² = 1417

1417 is the hypotenuse of FOUR Pythagorean triples:
265-1392-1417 calculated from 29² – 24², 2(29)(24), 29² + 24²
545-1308-1417 which is (5-12-13) times 109
780-1183-1417 which is 13 times (60-91-109)
792-1175-1417 calculated from 2(36)(11) , 36² – 11² , 36² + 11²

1416 A Birthday Mystery

Today is my sister’s birthday, but the cake is tipped over and there’s a big hole in it! And what happened to the candle? Can you solve this mystery? Happy birthday, Sue! Print the puzzles or type the solution in this excel file: 10 Factors 1410-1418

Now I’ll share some facts about the puzzle number 1416:

• 1416 is a composite number.
• Prime factorization: 1416 = 2 × 2 × 2 × 3 × 59, which can be written 1416 = 2³ × 3 × 59
• 1416 has at least one exponent greater than 1 in its prime factorization so √1416 can be simplified. Taking the factor pair from the factor pair table below with the largest square number factor, we get √1416 = (√4)(√354) = 2√354
• The exponents in the prime factorization are 3,1 and 1. Adding one to each exponent and multiplying we get (3 + 1)(1 + 1) (1 + 1) = 4 × 2 × 2 = 16. Therefore 1416 has exactly 16 factors.
• The factors of 1416 are outlined with their factor pair partners in the graphic below. 1416 is the difference of two squares four ways:
355² – 353²  = 1416
179² – 175²  = 1416
121² – 115²  = 1416
65² – 53²  = 1416

1415 and Level 6

Very likely when you look at this puzzle common factors of 40 and 10, 8 and 16, 9 and 18, and 20 and 40 will pop into your head. Will they be the right common factors that work with all the other clues in the puzzle to produce a unique solution? Let logic be your guide when finding the factors. Print the puzzles or type the solution in this excel file: 10 Factors 1410-1418

Now I’ll tell you something about the puzzle number, 1415:

• 1415 is a composite number.
• Prime factorization: 1415 = 5 × 283
• 1415 has no exponents greater than 1 in its prime factorization, so √1415 cannot be simplified.
• The exponents in the prime factorization are 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1) = 2 × 2 = 4. Therefore 1415 has exactly 4 factors.
• The factors of 1415 are outlined with their factor pair partners in the graphic below. 1415 is also the hypotenuse of a Pythagorean triple:
849-1132-1415 which is (3-4-5) times 283.

1414 Your Math Education Post Will Add So Much to This Month’s Carnival!

Have you written a blog post that would bring delight to a preschool, K-12 or homeschool mathematics teacher or student? Then submit it to this month’s Playful Math Education Blog Carnival or message me on Twitter by Friday, September 20th! I’m hosting the carnival this month, and I would love to read your post. So come join the fun!

Today’s puzzle looks a little like a wild, but fun? carnival ride. The numbers 36 and 12 went together on the ride. They managed to stay with each other but the ride went so fast, you can see 36 and 12 in two different places at the same time. There’s also poor number 40. You can see it in THREE places at the same time.

Oh my! Can you use logic to find where the numbers 1 to 10 need to go in both the first column and the top row so that this wild ride will behave like a multiplication table? It’s a level 5 so it won’t be easy to find its unique solution. Are you brave enough to try? Print the puzzles or type the solution in this excel file: 10 Factors 1410-1418

That puzzle’s number is 1414. Let me tell you a little about that number:

• 1414 is a composite number.
• Prime factorization: 1414 = 2 × 7 × 101
• 1414 has no exponents greater than 1 in its prime factorization, so √1414 cannot be simplified.
• The exponents in the prime factorization are 1, 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1)(1 + 1) = 2 × 2 × 2 = 8. Therefore 1414 has exactly 8 factors.
• The factors of 1414 are outlined with their factor pair partners in the graphic below. 1414 is also the hypotenuse of a Pythagorean triple:
280-1386-1414 which is 14 times (20-99-101)