Q: What are the prime factors of the number 877,473?

 A: 3, 23, 157

Why are those the prime factors of the number 877,473?

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 877,473

877,473
Factor Arrows
3292,491
Factor Arrows
397,497
Factor Arrows
332,499
Factor Arrows
310,833
Factor Arrows
33,611
Factor Arrows
23157

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, 23, 157

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 23 x 157 = 877,473

This can also be written as 35 x 231 x 1571 = 877,473

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


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