As a product of its prime factors: 2*2*3*5 = 60
30, 60, and 90.
4 and 11.
9 and 11.
A factor multiplies with another factor to create a product.
4 and 9
-56
44
-12 and +5
60 AND 15
8.81 and -6.81
8 and -60
-1540
there are 6: 21,28,35,42,49,56
(20) and (negative 3)
-71
60, 120, 180 and so on.
60, 120, 180 and so on.