Q: What are the prime factors of the number 7,858,376?

 A: 2, 31, 31687

Why are those the prime factors of the number 7,858,376?

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 7,858,376

7,858,376
Factor Arrows
23,929,188
Factor Arrows
21,964,594
Factor Arrows
2982,297
Factor Arrows
3131,687

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, 31, 31687

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 31 x 31,687 = 7,858,376

This can also be written as 23 x 311 x 31,6871 = 7,858,376

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


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