61 is already prime. It doesn't need a tree.
Chat with our AI personalities
Since 61 is already prime, a factor tree is not necessary. The prime factorization of 51 is 3 x 17, which wouldn't make much of a tree. More like a factor shrub.
(244) = 2 * (122) (122) = 2 * 61 so prime factors are 2, 2, 61
factor tree of 216
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