2 x 2 x 5 x 61
1,220 = 22 × 5 × 61
a prime factorization tree
If completed correctly, the bottom branch of a factor tree will be the prime factorization of the number at the top.
A Factor Tree
factor tree
1,220 = 22 × 5 × 61
1220 610,2 305,2,2 61,5,2,2
a prime factorization tree
317 is a prime number.
5,023 is a prime number.
23 is a prime number. No prime factorization. No tree.
If completed correctly, the bottom branch of a factor tree will be the prime factorization of the number at the top.
1997 is already prime; no tree.
It is itself because 293 is a prime number
It is itself because 193 is a prime number
The purpose of a factor tree is to notate the process of finding the prime factorization. If a number is already prime, a factor tree is not necessary.
355 5,71