2 x 50
4 x 25
5 x 20
10 x 10
2 x 2 x 25
2 x 5 x 10
4 x 5 x 5
2 x 2 x 5 x 5
2 x 200 4 x 100
What are the factor strings of 120
Any multiple of 10.
2*6,4*3
2 x 2 x 5 x 5
3 x 41 = 123
Factor strings are multiplication sentences. 3 x 3 is a factor string for 9.
23 is prime. No strings.
41 is prime. No strings.
2 x 2 x 13 = 52
2 x 2 x 11 = 44
The longest factor string for 45 is 3 x 3 x 5