1 is the greatest and only common factor of 15 and 38.
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 only common factors of 38 and 90 are 1 and 2, so it is not possible for a common factor of 38 and 90 to be greater than 2, much less 20.
The only common factor is 1.
For 15 the factors are 1,3,5,15 and for 38 the factors are 1,2,19,38, so the GCF is 1.
The greatest common factor of 38 and 76 is 38.
The greatest common factor is 2
The greatest common factor for 16 and 38 is 2.
The greatest common factor of 205 and 38 is 1.
The greatest common factor of 38 and 92 is 2.
The greatest common factor of 38 and 104 is 2.
The greatest common factor of 38 and 1,000 is 2.
Since 38 is a factor of 76, all of its factors are common.