Q: What are the prime factors of the number 83,751,520?

 A: 2, 5, 17, 41, 751

Why are those the prime factors of the number 83,751,520?

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 83,751,520

83,751,520
Factor Arrows
241,875,760
Factor Arrows
220,937,880
Factor Arrows
210,468,940
Factor Arrows
25,234,470
Factor Arrows
22,617,235
Factor Arrows
5523,447
Factor Arrows
1730,791
Factor Arrows
41751

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, 5, 17, 41, 751

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 17 x 41 x 751 = 83,751,520

This can also be written as 25 x 51 x 171 x 411 x 7511 = 83,751,520

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


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