Factors of 51: 1, 3, 17, and 51
3 and 17 are prime.
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No, 51 isn't prime. 17 is the largest prime factor of 306.
Greatest common factor of 20 & 51 is 1. Factors of 20 are 1, 2, 4, 5, 10 & 20. Factors of 51 are 1, 3, 17 & 51. The only common factor is 1, so GCF is 1. Alternate method: Prime factorization of 20 = 2x2x5 Prime factorization of 51 = 3x17 From the prime factorizations it is clear that 1 is the GCF of 20 and 51.
The GCF of 51 and 65 is 1. The prime factorization of 51 is 3*17. The prime factorization of 65 is 5*13 They have no factors in common other than 1.
Yes, 3 and 17 both are prime factors of 51 because 51 is divisible by 3 and 17. 51/3 = 17 and 51/17 = 3.
The prime factors of 51 are 3 and 17. Once you add itself and one, you have all the factors. (1,3,17,51)