17, 23 and 31 are prime. 39 is not.
17, 23 and 31 are prime. 39 is not.
17, 19, 23, 29, and 31
51 is composite number
17, 19, 23, 29, and 31
17, 23 and 31 are prime. 39 is not.
17, 23 and 31 are prime. 39 is not.
39
17, 19, 23, 29, and 31
51 is composite number
17, 31 and 23 are.
51 = 3 x 17
17, 19, 23, 29, and 31
No, 12121 is composite. Its prime factors are: 31 x 23 x 17 = 12121
prime numbers above 13 = 17, 19, 23, 29, 31,...
7 11 13 17 19 23 29.
39 is not prime because 13 and 3 are factors of it. To be prime the number cannot have any factors except itself and 1.