45
15 ,3
5, 3, 3
45 is my factor i need four number by multpling to get to 45
3
Three
Divide by three and five. 1, 3, 5, 9, 15, 45
39 and 45's highest common factor is three.
They are 45, 90, 135, 180, 225, 270, 315, 360, 405, and 450.
18, 45 & 36
42, 45 and 48
48, 54, 60
27, 36, 45
48, 54, 60
No, but 5 is a factor of 45.