19 is already prime; no need for a tree.
19 is already prime. No need for a tree.19 is prime. No tree.
Factor tree of 4123 .......... 4123 ............/ \ .......133 *31 ..... ../ \ ......7 *19
95 / \ 5 19
1 and 19
The purpose of a factor tree is to divide a number into prime factors. 1 is not a prime number.
19 is prime. No tree.
57 3, 19 Note: 19 is a prime number
19 is already prime. No need for a tree.19 is prime. No tree.
Factor tree of 4123 .......... 4123 ............/ \ .......133 *31 ..... ../ \ ......7 *19
11*19
323 17 x 19 Both 17 and 19 are prime numbers, so the factor tree is finished.
133 7 x 19 Both 7 and 19 are prime numbers, so the factor tree is complete.
285 15 x 19 (3 x 5) x 19 The factor tree has reduced 285 to its prime factors: 3, 5, and 19.
5 x 19
95 / \ 5 19
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.