Q: What are the prime factors of the number 115,305,520?

 A: 2, 5, 11, 283, 463

Why are those the prime factors of the number 115,305,520?

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 115,305,520

115,305,520
Factor Arrows
257,652,760
Factor Arrows
228,826,380
Factor Arrows
214,413,190
Factor Arrows
27,206,595
Factor Arrows
51,441,319
Factor Arrows
11131,029
Factor Arrows
283463

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, 11, 283, 463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 283 x 463 = 115,305,520

This can also be written as 24 x 51 x 111 x 2831 x 4631 = 115,305,520

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


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