Q: What are the prime factors of the number 281,757,216?

 A: 2, 3, 13, 225767

Why are those the prime factors of the number 281,757,216?

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 281,757,216

281,757,216
Factor Arrows
2140,878,608
Factor Arrows
270,439,304
Factor Arrows
235,219,652
Factor Arrows
217,609,826
Factor Arrows
28,804,913
Factor Arrows
32,934,971
Factor Arrows
13225,767

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, 13, 225767

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 13 x 225,767 = 281,757,216

This can also be written as 25 x 31 x 131 x 225,7671 = 281,757,216

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


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