Q: What are the prime factors of the number 886,820?

 A: 2, 5, 11, 29, 139

Why are those the prime factors of the number 886,820?

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 886,820

886,820
Factor Arrows
2443,410
Factor Arrows
2221,705
Factor Arrows
544,341
Factor Arrows
114,031
Factor Arrows
29139

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, 11, 29, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 29 x 139 = 886,820

This can also be written as 22 x 51 x 111 x 291 x 1391 = 886,820

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


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