Factor Tree of 520: ........520 ......../ \ ....104 5 ...../ \ ...4..26 ../\.. /\ 2 2 2 13
83 is prime. No tree.
61 is already prime. It doesn't need a tree.
When the bottom branch consists entirely of prime numbers.
The purpose of a factor tree is to divide a number into prime factors. 1 is not a prime number.
26 2,13
26 2,13
26 2,13
26 2,13
26 / \ 2 13
52 2, 26 2, 2, 13
78 / \ 3 26 / \ 13 2
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