The factor pairs of 26 are 1 x 26 and 2 x 13.
Factor Tree of 520: ........520 ......../ \ ....104 5 ...../ \ ...4..26 ../\.. /\ 2 2 2 13
83 is prime. No tree.
The factor pairs of 26 are the pairs of numbers that, when multiplied together, equal 26. The factor pairs of 26 are (1, 26) and (2, 13). These pairs represent the integer factors of 26.
61 is already prime. It doesn't need a tree.
When the bottom branch consists entirely of prime numbers.
26 2,13
26 2,13
26 2,13
26 2,13
26 / \ 2 13
78 / \ 3 26 / \ 13 2
52 2, 26 2, 2, 13
2 and 13 are the prime factors and the other factors are 1 and 26
64 ^ 32x2 ^ 16x2 ^ 8x2 ^ 4x2 ^ 2x2 PF:2x2x2x2x2x2 or 26
If You Are Making A Factor Tree 2 And 26 Will Go Into 52
208 104*2 26 * 4 13*2 2*2
I can't make the actual lines, but there's a factor tree. 104 2 * 52 2 * 26 2 * 13 2*2*2*13=104