Q: What are the prime factors of the number 280,162,388?

 A: 2, 11, 29, 89, 2467

Why are those the prime factors of the number 280,162,388?

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 280,162,388

280,162,388
Factor Arrows
2140,081,194
Factor Arrows
270,040,597
Factor Arrows
116,367,327
Factor Arrows
29219,563
Factor Arrows
892,467

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, 11, 29, 89, 2467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 29 x 89 x 2,467 = 280,162,388

This can also be written as 22 x 111 x 291 x 891 x 2,4671 = 280,162,388

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


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