Q: What are the prime factors of the number 1,502,544?

 A: 2, 3, 23, 1361

Why are those the prime factors of the number 1,502,544?

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 1,502,544

1,502,544
Factor Arrows
2751,272
Factor Arrows
2375,636
Factor Arrows
2187,818
Factor Arrows
293,909
Factor Arrows
331,303
Factor Arrows
231,361

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, 3, 23, 1361

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 23 x 1,361 = 1,502,544

This can also be written as 24 x 31 x 231 x 1,3611 = 1,502,544

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


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