Q: What are the prime factors of the number 427,284?

 A: 2, 3, 11, 13, 83

Why are those the prime factors of the number 427,284?

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 427,284

427,284
Factor Arrows
2213,642
Factor Arrows
2106,821
Factor Arrows
335,607
Factor Arrows
311,869
Factor Arrows
111,079
Factor Arrows
1383

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, 3, 11, 13, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 13 x 83 = 427,284

This can also be written as 22 x 32 x 111 x 131 x 831 = 427,284

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


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