Q: What are the prime factors of the number 816,880?

 A: 2, 5, 10211

Why are those the prime factors of the number 816,880?

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 816,880

816,880
Factor Arrows
2408,440
Factor Arrows
2204,220
Factor Arrows
2102,110
Factor Arrows
251,055
Factor Arrows
510,211

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, 10211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 10,211 = 816,880

This can also be written as 24 x 51 x 10,2111 = 816,880

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


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