Q: What are the prime factors of the number 27,901,384?

 A: 2, 7, 109, 653

Why are those the prime factors of the number 27,901,384?

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 27,901,384

27,901,384
Factor Arrows
213,950,692
Factor Arrows
26,975,346
Factor Arrows
23,487,673
Factor Arrows
7498,239
Factor Arrows
771,177
Factor Arrows
109653

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, 109, 653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 109 x 653 = 27,901,384

This can also be written as 23 x 72 x 1091 x 6531 = 27,901,384

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


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