31, 47 and 103 are prime. The rest are composite.
51 is composite.
51 is a composite number but 61 is a prime number
It is composite.
3929 is a prime number and 51 is a composite number
51 is composite.
No, it is composite.
51 is a composite number 3 x 17 = 51
ANSWER: 61 is a prime number but 51 is a composite number.61 is a prime number because the factors of 61 are 1 and itself (61).51 is a composite number because the factors of 51 other 1 and itself (51) are 3 and 17.
51 is divisible by 3, therefor it is composite. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1, 2, and 0. 1, 2, and 0 have a different name.
24 and 51 are composite, 3 is prime.
Composite