Q: What are the prime factors of the number 115,220,416?

 A: 2, 157, 11467

Why are those the prime factors of the number 115,220,416?

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 115,220,416

115,220,416
Factor Arrows
257,610,208
Factor Arrows
228,805,104
Factor Arrows
214,402,552
Factor Arrows
27,201,276
Factor Arrows
23,600,638
Factor Arrows
21,800,319
Factor Arrows
15711,467

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, 157, 11467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 157 x 11,467 = 115,220,416

This can also be written as 26 x 1571 x 11,4671 = 115,220,416

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


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