A Multiplication Based Logic Puzzle

662 is the sum of the twelve prime numbers from 31 to 79.

662 Puzzle Candy Corn

Print the puzzles or type the solution on this excel file: 10 Factors 2015-10-26

Here’s the same candy corn puzzle but less colorful.

662 Puzzle

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  • 662 is a composite number.
  • Prime factorization: 662 = 2 x 331
  • The exponents in the prime factorization are 1 and 1. Adding one to each and multiplying we get (1 + 1)(1 + 1) = 2 x 2 = 4. Therefore 662 has exactly 4 factors.
  • Factors of 662: 1, 2, 331, 662
  • Factor pairs: 662 = 1 x 662 or 2 x 331
  • 662 has no square factors that allow its square root to be simplified. √662 ≈ 25.72936.

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662 Logic

Ricardo tweeted the solution to the puzzle so I’m including it here as well.

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