Q: What are the prime factors of the number 39,573,312?

 A: 2, 3, 79, 2609

Why are those the prime factors of the number 39,573,312?

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 39,573,312

39,573,312
Factor Arrows
219,786,656
Factor Arrows
29,893,328
Factor Arrows
24,946,664
Factor Arrows
22,473,332
Factor Arrows
21,236,666
Factor Arrows
2618,333
Factor Arrows
3206,111
Factor Arrows
792,609

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, 79, 2609

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 79 x 2,609 = 39,573,312

This can also be written as 26 x 31 x 791 x 2,6091 = 39,573,312

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


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