Q: What are the prime factors of the number 772,497?

 A: 3, 11, 17

Why are those the prime factors of the number 772,497?

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 772,497

772,497
Factor Arrows
3257,499
Factor Arrows
385,833
Factor Arrows
328,611
Factor Arrows
39,537
Factor Arrows
33,179
Factor Arrows
11289
Factor Arrows
1717

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, 11, 17

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 17 x 17 = 772,497

This can also be written as 35 x 111 x 172 = 772,497

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


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