Q: What are the prime factors of the number 82,585,824?

 A: 2, 3, 23, 113, 331

Why are those the prime factors of the number 82,585,824?

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 82,585,824

82,585,824
Factor Arrows
241,292,912
Factor Arrows
220,646,456
Factor Arrows
210,323,228
Factor Arrows
25,161,614
Factor Arrows
22,580,807
Factor Arrows
3860,269
Factor Arrows
2337,403
Factor Arrows
113331

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, 23, 113, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 23 x 113 x 331 = 82,585,824

This can also be written as 25 x 31 x 231 x 1131 x 3311 = 82,585,824

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


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