Q: What are the prime factors of the number 280,432?

 A: 2, 17, 1031

Why are those the prime factors of the number 280,432?

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 280,432

280,432
Factor Arrows
2140,216
Factor Arrows
270,108
Factor Arrows
235,054
Factor Arrows
217,527
Factor Arrows
171,031

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, 17, 1031

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 17 x 1,031 = 280,432

This can also be written as 24 x 171 x 1,0311 = 280,432

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


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