Q: What are the prime factors of the number 133,433,076?

 A: 2, 3, 7, 149, 1523

Why are those the prime factors of the number 133,433,076?

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 133,433,076

133,433,076
Factor Arrows
266,716,538
Factor Arrows
233,358,269
Factor Arrows
311,119,423
Factor Arrows
71,588,489
Factor Arrows
7226,927
Factor Arrows
1491,523

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, 7, 149, 1523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 149 x 1,523 = 133,433,076

This can also be written as 22 x 31 x 72 x 1491 x 1,5231 = 133,433,076

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


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