Q: What are the prime factors of the number 835,820?

 A: 2, 5, 23, 79

Why are those the prime factors of the number 835,820?

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 835,820

835,820
Factor Arrows
2417,910
Factor Arrows
2208,955
Factor Arrows
541,791
Factor Arrows
231,817
Factor Arrows
2379

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, 23, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 23 x 23 x 79 = 835,820

This can also be written as 22 x 51 x 232 x 791 = 835,820

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


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