Q: What are the prime factors of the number 45,131,877?

 A: 3, 7, 31, 7703

Why are those the prime factors of the number 45,131,877?

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 45,131,877

45,131,877
Factor Arrows
315,043,959
Factor Arrows
35,014,653
Factor Arrows
31,671,551
Factor Arrows
7238,793
Factor Arrows
317,703

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:

3, 7, 31, 7703

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 31 x 7,703 = 45,131,877

This can also be written as 33 x 71 x 311 x 7,7031 = 45,131,877

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


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