Q: What are the prime factors of the number 280,142,226?

 A: 2, 3, 7, 13, 31, 613

Why are those the prime factors of the number 280,142,226?

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 280,142,226

280,142,226
Factor Arrows
2140,071,113
Factor Arrows
346,690,371
Factor Arrows
315,563,457
Factor Arrows
35,187,819
Factor Arrows
31,729,273
Factor Arrows
7247,039
Factor Arrows
1319,003
Factor Arrows
31613

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, 7, 13, 31, 613

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 7 x 13 x 31 x 613 = 280,142,226

This can also be written as 21 x 34 x 71 x 131 x 311 x 6131 = 280,142,226

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


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