Q: What are the prime factors of the number 1,979,012?

 A: 2, 7, 23, 439

Why are those the prime factors of the number 1,979,012?

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 1,979,012

1,979,012
Factor Arrows
2989,506
Factor Arrows
2494,753
Factor Arrows
770,679
Factor Arrows
710,097
Factor Arrows
23439

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, 7, 23, 439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 23 x 439 = 1,979,012

This can also be written as 22 x 72 x 231 x 4391 = 1,979,012

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


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