Q: What are the prime factors of the number 278,374,468?

 A: 2, 223, 521, 599

Why are those the prime factors of the number 278,374,468?

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 278,374,468

278,374,468
Factor Arrows
2139,187,234
Factor Arrows
269,593,617
Factor Arrows
223312,079
Factor Arrows
521599

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, 223, 521, 599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 223 x 521 x 599 = 278,374,468

This can also be written as 22 x 2231 x 5211 x 5991 = 278,374,468

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


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