The GCF of 3 and 19 is 1. Because 3 and 19 are both prime numbers, they have no other common factor.
Chat with our AI personalities
The greatest common factor of 38 and 57 is 19. The prime factorization of 38 is 2*19 The prime factorization of 57 is 3*19 So the GCF is 19.
You need at least two numbers to find a greatest COMMONFactor.The greatest COMMON factor for 171 will depend upon the other number(s) with which it has COMMON factors, but it WILL be one of the factors of 171, namely one of: 1, 3, 9, 19, 57, 171
The greatest common factor of 30 and 39 is 3.
The greatest common factor of 24 and 57 is 3.
The greatest common factor of 3 and 57 is 3