Q: What are the prime factors of the number 501,144,105?

 A: 3, 5, 7, 11, 17, 25523

Why are those the prime factors of the number 501,144,105?

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 501,144,105

501,144,105
Factor Arrows
3167,048,035
Factor Arrows
533,409,607
Factor Arrows
74,772,801
Factor Arrows
11433,891
Factor Arrows
1725,523

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, 11, 17, 25523

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 11 x 17 x 25,523 = 501,144,105

This can also be written as 31 x 51 x 71 x 111 x 171 x 25,5231 = 501,144,105

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


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