Q: What are the prime factors of the number 133,312,140?

 A: 2, 3, 5, 13, 23, 2477

Why are those the prime factors of the number 133,312,140?

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 133,312,140

133,312,140
Factor Arrows
266,656,070
Factor Arrows
233,328,035
Factor Arrows
311,109,345
Factor Arrows
33,703,115
Factor Arrows
5740,623
Factor Arrows
1356,971
Factor Arrows
232,477

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, 13, 23, 2477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 13 x 23 x 2,477 = 133,312,140

This can also be written as 22 x 32 x 51 x 131 x 231 x 2,4771 = 133,312,140

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


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