Q: What are the prime factors of the number 45,620,505?

 A: 3, 5, 7, 251, 577

Why are those the prime factors of the number 45,620,505?

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 45,620,505

45,620,505
Factor Arrows
315,206,835
Factor Arrows
35,068,945
Factor Arrows
51,013,789
Factor Arrows
7144,827
Factor Arrows
251577

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, 5, 7, 251, 577

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 251 x 577 = 45,620,505

This can also be written as 32 x 51 x 71 x 2511 x 5771 = 45,620,505

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


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