Q: What are the prime factors of the number 787,836?

 A: 2, 3, 7, 83, 113

Why are those the prime factors of the number 787,836?

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 787,836

787,836
Factor Arrows
2393,918
Factor Arrows
2196,959
Factor Arrows
365,653
Factor Arrows
79,379
Factor Arrows
83113

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, 7, 83, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 83 x 113 = 787,836

This can also be written as 22 x 31 x 71 x 831 x 1131 = 787,836

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


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