Answer:
answers are:
7 and 14
The factors of 7 is: 1, 7
The factors of 14 is: 1, 2, 7, 14
28 and 7
Factors of 28: 1, 2, 4, 7, 14, 28
Facotrs of 7: 1, 7
Step-by-step explanation:
others:
21, 3 is GCF is 3
The factors of 3 are: 1, 3
The factors of 21 are: 1, 3, 7, 21
7, 1 is GCF is 1
The factors of 1 are: 1
The factors of 7 are: 1, 7
