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FactorTrees (hard)
Contributed by: Williams
A special diagram 
where we find the factors 
of a number, then the factors 
of those numbers, etc, 
until we can't factor any more. 
The ends are all the 
prime factors of the original 
number.
The number one (1) is neither
prime nor composite, and is 
not shown on the factor tree.
(Prime Factorization)
What multiplies   to make 16?
2
2
16
2
2
2
2
What multiplies   to make 24?
2
2
24
2
2
2
2
What multiplies   to make 32?
2
2
4
32
2
2
What multiplies   to make 36?
2
2
36
2
2
2
3
What multiplies   to make 40?
2
2
40
2
2
2
2
What multiplies   to make 48?
2
2
3
48
6
2
2
What multiplies   to make 54?
2
2
54
2
3
3
What multiplies   to make 56?
2
2
56
2
4
7
What multiplies   to make 60?
2
2
60
2
2
2
3
What multiplies   to make 63?
3
63
3
3
What multiplies   to make 64?
2
2
8
64
2
2
What multiplies   to make 72?
2
2
8
72
3
3
What multiplies   to make 80?
2
2
8
80
2
2
5
What multiplies   to make 81?
3
3
81
3
3
3
What multiplies   to make 84?
2
2
84
2
2
2
3
What multiplies   to make 88?
2
2
88
2
2
2
2
What multiplies   to make 90?
2
2
90
2
3
3
3
What multiplies   to make 96?
2
2
8
96
3
3
What multiplies  to make 100?
2
100
2
2
2
2
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