Q: What are the prime factors of the number 12,317,670?

 A: 2, 3, 5, 37, 137

Why are those the prime factors of the number 12,317,670?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 12,317,670

12,317,670
Factor Arrows
26,158,835
Factor Arrows
32,052,945
Factor Arrows
3684,315
Factor Arrows
3228,105
Factor Arrows
376,035
Factor Arrows
325,345
Factor Arrows
55,069
Factor Arrows
37137

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 37, 137

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 37 x 137 = 12,317,670

This can also be written as 21 x 35 x 51 x 371 x 1371 = 12,317,670

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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