Q: What are the prime factors of the number 281,530,548?

 A: 2, 3, 13, 211, 2851

Why are those the prime factors of the number 281,530,548?

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 281,530,548

281,530,548
Factor Arrows
2140,765,274
Factor Arrows
270,382,637
Factor Arrows
323,460,879
Factor Arrows
37,820,293
Factor Arrows
13601,561
Factor Arrows
2112,851

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, 211, 2851

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 211 x 2,851 = 281,530,548

This can also be written as 22 x 32 x 131 x 2111 x 2,8511 = 281,530,548

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


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