Q: What are the prime factors of the number 783,380?

 A: 2, 5, 13, 23, 131

Why are those the prime factors of the number 783,380?

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 783,380

783,380
Factor Arrows
2391,690
Factor Arrows
2195,845
Factor Arrows
539,169
Factor Arrows
133,013
Factor Arrows
23131

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, 5, 13, 23, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 23 x 131 = 783,380

This can also be written as 22 x 51 x 131 x 231 x 1311 = 783,380

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


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