3,3,3,3.8.3.682
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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
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.
0.65, -3/5, -2/3
its 1 the factors of 38 are 19 and 2 and 45 are 9 and 5 (prime factors would be 5 and 3 and 3)
The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.