Site icon Find the Factors

307 and Level 5

Advertisements

How do we know that 307 is a prime number? If 307 were not a prime number, then it would be divisible by at least one prime number less than or equal to √307 ≈ 17.521. Since 307 cannot be divided evenly by 2, 3, 5, 7, 11, 13, or 17, we know that 307 is a prime number.

Eleven clues that might stump you:

Print the puzzles or type the factors on this excel file: 10 Factors 2014-11-24

Exit mobile version