Start the school year off right with a quick review of the multiplication table. You can actually construct an entire 10 × 10 table with only the nine clues in this puzzle. Figure out where the numbers 1 to 10 go in both the first column and the top row and amaze yourself with how much you remember!

- 1410 is a composite number.
- Prime factorization: 1410 = 2 × 3 × 5 × 47
- 1410 has no exponents greater than 1 in its prime factorization, so √1410 cannot be simplified.
- The exponents in the prime factorization are 1, 1, 1, and 1. Adding one to each exponent and multiplying we get (1 + 1)(1 + 1)(1 + 1)(1 + 1) = 2 × 2 × 2 × 2 = 16. Therefore 1410 has exactly 16 factors.
- The factors of 1410 are outlined with their factor pair partners in the graphic below.

1410 is the hypotenuse of a Pythagorean triple:

846-1128-1410 which is (3-4-**5**) times **282**.