Q: What are the prime factors of the number 82,587,376?

 A: 2, 19, 317, 857

Why are those the prime factors of the number 82,587,376?

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 82,587,376

82,587,376
Factor Arrows
241,293,688
Factor Arrows
220,646,844
Factor Arrows
210,323,422
Factor Arrows
25,161,711
Factor Arrows
19271,669
Factor Arrows
317857

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, 19, 317, 857

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 317 x 857 = 82,587,376

This can also be written as 24 x 191 x 3171 x 8571 = 82,587,376

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


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