Q: What are the prime factors of the number 264,740?

 A: 2, 5, 7, 31, 61

Why are those the prime factors of the number 264,740?

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 264,740

264,740
Factor Arrows
2132,370
Factor Arrows
266,185
Factor Arrows
513,237
Factor Arrows
71,891
Factor Arrows
3161

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, 5, 7, 31, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 31 x 61 = 264,740

This can also be written as 22 x 51 x 71 x 311 x 611 = 264,740

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


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