Q: What are the prime factors of the number 28,349,496?

 A: 2, 3, 7, 56249

Why are those the prime factors of the number 28,349,496?

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 28,349,496

28,349,496
Factor Arrows
214,174,748
Factor Arrows
27,087,374
Factor Arrows
23,543,687
Factor Arrows
31,181,229
Factor Arrows
3393,743
Factor Arrows
756,249

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, 7, 56249

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 56,249 = 28,349,496

This can also be written as 23 x 32 x 71 x 56,2491 = 28,349,496

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


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