Q: What are the prime factors of the number 133,042,364?

 A: 2, 7, 13, 317, 1153

Why are those the prime factors of the number 133,042,364?

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 133,042,364

133,042,364
Factor Arrows
266,521,182
Factor Arrows
233,260,591
Factor Arrows
74,751,513
Factor Arrows
13365,501
Factor Arrows
3171,153

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, 7, 13, 317, 1153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 13 x 317 x 1,153 = 133,042,364

This can also be written as 22 x 71 x 131 x 3171 x 1,1531 = 133,042,364

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


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