Q: What are the prime factors of the number 133,011,315?

 A: 3, 5, 17, 19319

Why are those the prime factors of the number 133,011,315?

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 133,011,315

133,011,315
Factor Arrows
344,337,105
Factor Arrows
314,779,035
Factor Arrows
34,926,345
Factor Arrows
31,642,115
Factor Arrows
5328,423
Factor Arrows
1719,319

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:

3, 5, 17, 19319

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 17 x 19,319 = 133,011,315

This can also be written as 34 x 51 x 171 x 19,3191 = 133,011,315

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


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