Q: What are the prime factors of the number 281,774,608?

 A: 2, 251, 70163

Why are those the prime factors of the number 281,774,608?

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 281,774,608

281,774,608
Factor Arrows
2140,887,304
Factor Arrows
270,443,652
Factor Arrows
235,221,826
Factor Arrows
217,610,913
Factor Arrows
25170,163

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, 251, 70163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 251 x 70,163 = 281,774,608

This can also be written as 24 x 2511 x 70,1631 = 281,774,608

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


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