Q: What are the prime factors of the number 120,844,689?

 A: 3, 7, 701, 8209

Why are those the prime factors of the number 120,844,689?

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 120,844,689

120,844,689
Factor Arrows
340,281,563
Factor Arrows
75,754,509
Factor Arrows
7018,209

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, 7, 701, 8209

We can check our work by multiplying all of the prime factors together: 3 x 7 x 701 x 8,209 = 120,844,689

This can also be written as 31 x 71 x 7011 x 8,2091 = 120,844,689

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


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