Q: What are the prime factors of the number 279,549?

 A: 3, 89, 349

Why are those the prime factors of the number 279,549?

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 279,549

279,549
Factor Arrows
393,183
Factor Arrows
331,061
Factor Arrows
89349

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, 89, 349

We can check our work by multiplying all of the prime factors together: 3 x 3 x 89 x 349 = 279,549

This can also be written as 32 x 891 x 3491 = 279,549

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


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