Q: What are the prime factors of the number 133,422,426?

 A: 2, 3, 17, 631, 691

Why are those the prime factors of the number 133,422,426?

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 133,422,426

133,422,426
Factor Arrows
266,711,213
Factor Arrows
322,237,071
Factor Arrows
37,412,357
Factor Arrows
17436,021
Factor Arrows
631691

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, 17, 631, 691

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 17 x 631 x 691 = 133,422,426

This can also be written as 21 x 32 x 171 x 6311 x 6911 = 133,422,426

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


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