Q: What are the prime factors of the number 2,503,512?

 A: 2, 3, 11, 29, 109

Why are those the prime factors of the number 2,503,512?

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 2,503,512

2,503,512
Factor Arrows
21,251,756
Factor Arrows
2625,878
Factor Arrows
2312,939
Factor Arrows
3104,313
Factor Arrows
334,771
Factor Arrows
113,161
Factor Arrows
29109

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, 11, 29, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 29 x 109 = 2,503,512

This can also be written as 23 x 32 x 111 x 291 x 1091 = 2,503,512

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


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