1, 2, 3, 6, 7, 14, 21, 42
42 21,2 7,3,2
Divide the product by the factor you have. 6 x ? = 42 42 ÷ 6 = 7
Since 14 is a factor of 42, it is automatically the GCF.
Use a factor tree. 42 21,2 7,3,2
42 21.2 7,3,2 7,3,2 21,2 42
All Factors of 42:1, 2, 3, 6, 7, 14, 21, 42
Find the prime factorization. It doesn't matter if you use a factor tree, or rainbow or firework. For example: 42 42 21,2 3,7,2 The prime factorization of 42 is 2 x 3 x 7. The greatest prime factor is 7.
The GCF is 21.
The GCF is 21.
28 is not a factor of 42.
6 is a factor of 42.
No, 4 is not a factor of 42.