Q: What are the prime factors of the number 140,671,076?

 A: 2, 7, 13, 223, 1733

Why are those the prime factors of the number 140,671,076?

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 140,671,076

140,671,076
Factor Arrows
270,335,538
Factor Arrows
235,167,769
Factor Arrows
75,023,967
Factor Arrows
13386,459
Factor Arrows
2231,733

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, 223, 1733

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 13 x 223 x 1,733 = 140,671,076

This can also be written as 22 x 71 x 131 x 2231 x 1,7331 = 140,671,076

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


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