Q: What are the prime factors of the number 120,301,515?

 A: 3, 5, 67, 39901

Why are those the prime factors of the number 120,301,515?

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 120,301,515

120,301,515
Factor Arrows
340,100,505
Factor Arrows
313,366,835
Factor Arrows
52,673,367
Factor Arrows
6739,901

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:

3, 5, 67, 39901

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 67 x 39,901 = 120,301,515

This can also be written as 32 x 51 x 671 x 39,9011 = 120,301,515

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


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