Q: What are the prime factors of the number 873,632?

 A: 2, 23, 1187

Why are those the prime factors of the number 873,632?

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 873,632

873,632
Factor Arrows
2436,816
Factor Arrows
2218,408
Factor Arrows
2109,204
Factor Arrows
254,602
Factor Arrows
227,301
Factor Arrows
231,187

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, 23, 1187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 23 x 1,187 = 873,632

This can also be written as 25 x 231 x 1,1871 = 873,632

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


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