Q: What are the prime factors of the number 3,820,880?

 A: 2, 5, 7, 6823

Why are those the prime factors of the number 3,820,880?

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 3,820,880

3,820,880
Factor Arrows
21,910,440
Factor Arrows
2955,220
Factor Arrows
2477,610
Factor Arrows
2238,805
Factor Arrows
547,761
Factor Arrows
76,823

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, 7, 6823

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 6,823 = 3,820,880

This can also be written as 24 x 51 x 71 x 6,8231 = 3,820,880

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


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