The GCF is 3.
Factors of 15: 1, 3, 5, 15. Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42. GCF (15, 42) = 3
The GCF is 21.
The GCF of 42 and 35 is 7.factors of 42: 2,6,7factors of 35: 5,7
If the GCF of two numbers is 1 then the numbers are co-prime or a pair of numbers which have only 1 as their common factoris called co-prime.Let us check if 15 and 42 share any common factors other than 1.Factors of 15: 1, 3, 5 and 15.Factors of 42: 1, 2, 3, 6, 7, 21 and 42.As it can be seen that 3 is a common factor or GCF of 15 and 42.So, 15 and 42 are not co-prime.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 15.
The answer is 3
The GCF is 3.
As written, the GCF is 6. If that's 15, 42 and 84, the GCF is 3.
The GCF of 1218 and 42 is 42. The GCF of 12, 18 and 42 is 6.
You need at least two numbers to find a GCF.
The GCF is: 27
The GCF is: 3