Q: What are the prime factors of the number 18,959,796?

 A: 2, 3, 19, 53, 523

Why are those the prime factors of the number 18,959,796?

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 18,959,796

18,959,796
Factor Arrows
29,479,898
Factor Arrows
24,739,949
Factor Arrows
31,579,983
Factor Arrows
3526,661
Factor Arrows
1927,719
Factor Arrows
53523

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, 3, 19, 53, 523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 19 x 53 x 523 = 18,959,796

This can also be written as 22 x 32 x 191 x 531 x 5231 = 18,959,796

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


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