Q: What are the prime factors of the number 158,784?

 A: 2, 3, 827

Why are those the prime factors of the number 158,784?

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 158,784

158,784
Factor Arrows
279,392
Factor Arrows
239,696
Factor Arrows
219,848
Factor Arrows
29,924
Factor Arrows
24,962
Factor Arrows
22,481
Factor Arrows
3827

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, 827

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 827 = 158,784

This can also be written as 26 x 31 x 8271 = 158,784

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


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