Only 1.
The common factors are 1 and 7.
The common factors of 49 and 35 are: 1 and 7
The common factors are: 1, 7
The factors of 14 are: 1, 2, 7, 14The factors of 49 are: 1, 7, 49The common factors are: 1, 7
The factors of 7 are 1 and 7. For them to be common, they need to be compared to another set of factors.The factors of 7 are 1 and 7. For them to be common, they need to be compared to another set of factors.
The factors of 21 are:1, 3, 7, 21The factors of 49 are:1, 7, 49The common factors are:1, 7
The factors of 14 are: 1, 2, 7, 14The factors of 49 are: 1, 7, 49The common factors are: 1, 7
The factors of 14 are: 1, 2, 7, 14 The factors of 49 are: 1, 7, 49 The common factors are: 1, 7
The factors of 7 are 1, 7 The factors of 25 are 1, 5, 25 → The common factor(s) of 7 and 25 is (are): 1 → greatest common factor is 1.
The factors of 7 are: 1, 7The factors of 13 are: 1, 13The common factor is: 1
The factors of 7 are: 1, 7The factors of 41 are: 1, 41The common factor is: 1
Common factors of 52 and 7 are: 1.