Q: What are the prime factors of the number 435,820?

 A: 2, 5, 7, 11, 283

Why are those the prime factors of the number 435,820?

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 435,820

435,820
Factor Arrows
2217,910
Factor Arrows
2108,955
Factor Arrows
521,791
Factor Arrows
73,113
Factor Arrows
11283

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, 11, 283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 11 x 283 = 435,820

This can also be written as 22 x 51 x 71 x 111 x 2831 = 435,820

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


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