Q: What are the prime factors of the number 278,892?

 A: 2, 3, 61, 127

Why are those the prime factors of the number 278,892?

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 278,892

278,892
Factor Arrows
2139,446
Factor Arrows
269,723
Factor Arrows
323,241
Factor Arrows
37,747
Factor Arrows
61127

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, 61, 127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 61 x 127 = 278,892

This can also be written as 22 x 32 x 611 x 1271 = 278,892

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


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