Q: What are the prime factors of the number 265,356?

 A: 2, 3, 7, 13

Why are those the prime factors of the number 265,356?

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 265,356

265,356
Factor Arrows
2132,678
Factor Arrows
266,339
Factor Arrows
322,113
Factor Arrows
37,371
Factor Arrows
32,457
Factor Arrows
3819
Factor Arrows
3273
Factor Arrows
391
Factor Arrows
713

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, 7, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 7 x 13 = 265,356

This can also be written as 22 x 36 x 71 x 131 = 265,356

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


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