Q: What are the prime factors of the number 280,476?

 A: 2, 3, 7, 53

Why are those the prime factors of the number 280,476?

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 280,476

280,476
Factor Arrows
2140,238
Factor Arrows
270,119
Factor Arrows
323,373
Factor Arrows
37,791
Factor Arrows
32,597
Factor Arrows
7371
Factor Arrows
753

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, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 7 x 53 = 280,476

This can also be written as 22 x 33 x 72 x 531 = 280,476

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


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