20 trees
It depends on the number it is compared to. 20 is a multiple of 10. 20 is a factor of 40. 20 is both a factor and a multiple of itself. 20 is neither a multiple nor a factor of 27.
Factor Tree of 20: ........20 ......../ \ .......4 5 ....../ \ .....2 2
Since 5 is a factor of 20, all the factors of 5 are common to 20.
A common factor is a factor both numbers can be evenly divided by.In this case it is 20.20/20 = 180/20 = 4
20 trees
20 is a factor of 40, among many other numbers.
204,52,2,5
20
20 has 3 factor pairs. Pairs are (1,20), (2,10) and (9,9)
Three.
Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
There are 3 factor pairs of 20: 1 x 20, 2 x 10 and 4 x 5.
20 and 40, among many others.
You could buy (4+1)*(3+1) = 5*4 = 20 combinations. This includes the combination of buying none.
Three of them.
You could buy (4+1)*(3+1) = 5*4 = 20 combinations. This includes the combination of buying none.