1 and 17. If there comes a time when you have the exact same question, but the problem has different numbers instead of 68 and 187, use prime factorization. To solve the original question: 68=2x2x17 and 187=11x17. What do they both have in common? 17. Tada!
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187 is divisible by 11 and so it cannot be prime.
Because it is not divisible by any other number.
A prime number is a number that is only evenly divisible by 1 and itself, since 11 and 17 both divide equally (no remainder) into 187 - it is not prime.
Yes, by: 1, 11, 17, 187.
Yes. The result is 187.