is the number 217 prime?

Prime is a whole number that has exactly two factors, 1 and itself.
The first few primes are 2, 3, 5 and 7.

217 is not a prime as it has more than two factors: 1, 217, 31 and 7 = 4 factors

Therefore, since it has more than two factors, it is called a composite number.

No.
It can be divided by 7.

no, if you divide by 7 it is 31

217 = 1 x 217
217 = 7 x 31

217 can be divided by 4 number completely, so it is a composite number.

No. Any prime number that is one greater then a multiple of 4 can be expressed as the sum of 2 square numbers in exactly one way. 217 is one greater than a multiple of 4, yet cannot be so expressed.

217^1/2=14.73
2,3,5,7,11,13
217/7=31 NO,because 31 x 7=217

Nope