gcf(15, 42) = 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.
gcf(15, 42) = 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.
1
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: 3