3 and 5
The common factors are: 1, 3, 5, 15.
Since 5 is a factor of 15, all of its factors are common.
1,3,5,15
1,3,5 and 15,
The common factors are: 1, 5.
The common factors of 6 and 15 is 1 and 3 that's all
-- List all the factors of 15. -- List all the factors of 30. -- Spot the group of numbers that are on both lists. -- The biggest one of those is the GCF. It should be close to 15.
Factors are numbers you can multiply together to get another number. 15: 1, 3, 5, 15
The common factors are: 1, 3, 5, 15.
The common factors of 10 and 15 are: 1 and 5.
1, 3, 5, 15.
Since 15 is a factor of 30, all of its factors are common.