Q: What are the prime factors of the number 1,979,008?

 A: 2, 15461

Why are those the prime factors of the number 1,979,008?

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 1,979,008

1,979,008
Factor Arrows
2989,504
Factor Arrows
2494,752
Factor Arrows
2247,376
Factor Arrows
2123,688
Factor Arrows
261,844
Factor Arrows
230,922
Factor Arrows
215,461

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, 15461

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 2 x 15,461 = 1,979,008

This can also be written as 27 x 15,4611 = 1,979,008

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


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