Q: What are the prime factors of the number 873,045?

 A: 3, 5, 29, 223

Why are those the prime factors of the number 873,045?

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 873,045

873,045
Factor Arrows
3291,015
Factor Arrows
397,005
Factor Arrows
332,335
Factor Arrows
56,467
Factor Arrows
29223

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, 5, 29, 223

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 29 x 223 = 873,045

This can also be written as 33 x 51 x 291 x 2231 = 873,045

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


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