141 = 3 x 47
The prime factorization of 141 is 47*2.
141 = 3 * 47
1997 is already prime; no tree.
It is: 3*47 = 141
51 3,17
350=2x5x5x7
33 11,3
a prime factorization tree
50 25,2 5,5,2
97 is already prime; no tree.
131 is already prime. No tree.
572=2x286=2x2x143=2x2x11x13