Q: What are the prime factors of the number 82,418,856?

 A: 2, 3, 13, 17, 41, 379

Why are those the prime factors of the number 82,418,856?

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 82,418,856

82,418,856
Factor Arrows
241,209,428
Factor Arrows
220,604,714
Factor Arrows
210,302,357
Factor Arrows
33,434,119
Factor Arrows
13264,163
Factor Arrows
1715,539
Factor Arrows
41379

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, 13, 17, 41, 379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 13 x 17 x 41 x 379 = 82,418,856

This can also be written as 23 x 31 x 131 x 171 x 411 x 3791 = 82,418,856

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


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