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28 = 22x7, or 2x2x7^4 7^2 2
28
14,2
7,2,2
It is: 2*2*7 = 28
28 14,2 7,2,2
39 3,13
69 3,23
28 14,2 7,2,2 35 5,7 2 x 2 x 5 x 7 = 140, the LCM
83 is prime. No tree.
28 4 7 2x2x7
28 4 x 7 2x2 7 = 2x2x7
28 7, 4 7, 2, 2
4
The factor tree is as follows: 114 57,2 19,3,2
no
No.
7,2,2 14,2 28