Q: What are the prime factors of the number 503,648?

 A: 2, 15739

Why are those the prime factors of the number 503,648?

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 503,648

503,648
Factor Arrows
2251,824
Factor Arrows
2125,912
Factor Arrows
262,956
Factor Arrows
231,478
Factor Arrows
215,739

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, 15739

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 15,739 = 503,648

This can also be written as 25 x 15,7391 = 503,648

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


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