The greatest common factor (GCF) of two numbers is the largest number that divides both numbers without leaving a remainder. In this case, the numbers 19 and 38 have a GCF of 19. This is because 19 is a Prime number and the only common factor of 19 and 38. Therefore, the GCF of 19 and 38 is 19.
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The greatest common factor is 19
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.
19
The GCF is 19.
1 is the greatest and only common factor of 15 and 38. The prime factorization of 15 is 3*5. The prime factorization of 38 is 2*19