Q: What are the prime factors of the number 133,042,238?

 A: 2, 7, 17, 559001

Why are those the prime factors of the number 133,042,238?

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 133,042,238

133,042,238
Factor Arrows
266,521,119
Factor Arrows
79,503,017
Factor Arrows
17559,001

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, 17, 559001

We can check our work by multiplying all of the prime factors together: 2 x 7 x 17 x 559,001 = 133,042,238

This can also be written as 21 x 71 x 171 x 559,0011 = 133,042,238

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


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