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.
145 5,29 Not much of a tree. More like a factor shrub.
IT IS PRIME there is no factor tree
Factor tree of 204
factor tree of 216
The factor tree of 50:5025,25,5,25025,25,5,2
21
28 = 2 x 2 x 7 or 22 x 71
83 is prime. No tree.
there is NO factor tree (prime factorization) of 29.
The prime factor tree of 280 is:140,270,2,235,2,2,27,5,2,2,2
Factor Tree of 20: ........20 ......../ \ .......4 5 ....../ \ .....2 2
A tree.
311 is prime. It doesn't need a factor tree.