Q: What are the prime factors of the number 274,664?

 A: 2, 13, 19, 139

Why are those the prime factors of the number 274,664?

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 274,664

274,664
Factor Arrows
2137,332
Factor Arrows
268,666
Factor Arrows
234,333
Factor Arrows
132,641
Factor Arrows
19139

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, 13, 19, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 19 x 139 = 274,664

This can also be written as 23 x 131 x 191 x 1391 = 274,664

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


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