Q: What are the prime factors of the number 284,840?

 A: 2, 5, 7121

Why are those the prime factors of the number 284,840?

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 284,840

284,840
Factor Arrows
2142,420
Factor Arrows
271,210
Factor Arrows
235,605
Factor Arrows
57,121

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, 7121

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7,121 = 284,840

This can also be written as 23 x 51 x 7,1211 = 284,840

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


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