42 21,2 7,3,2
2, 3, 7
12 6,2 3,2,2 42 21,2 7,3,2 2 x 3 = 6, the GCF
28 is not a factor of 42.
42=2x21 21=3x7 PF=2x3x7 The PF (Prime Factorization) of 42 is 2x3x7.(Sorry, I couldn't do a factor tree, there are always helpful to use when doing prime factorization, but since this is the computer, I could only do it like the following above.)
A Factor tree looks like this: ... 42 ... / . \ ..2 ...21 ....... / . \ .......3 . 7 So the prime factors of 42 are 2 x 3 x 7
42 21,2 7,3,2
A Factor tree looks like this:... 42... / . \..2 ...21....... / . \.......3 . 7So the prime factors of 42 are 2 x 3 x 7
42 21,2 7,3,2
42 21,2 7,3,2
42 21,2 7,3,2
42 21,2 7,3,2
42 21,2 7,3,2
42 21,2 7,3,2
42 21,2 7,3,2
Use a factor tree. 42 21,2 7,3,2
426,72,3,7