No, 51 is not a prime number. A prime number is a number that has only itself and 1 as a factor. 51's factors are 1,3,17, and 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 not a prime number: 3x17=51
51 is a prime number, so only 1 and 51 can go into it.
It is 51 to the nearest whole number.
51 is an odd number
51 is composite.
51 is a Prime number, so only 1 and 51 can go into it.
51 is.
51
51
No, it is not a prime number. It has factors of: 1, 3, 17, 51.