Q: What are the prime factors of the number 281,008?

 A: 2, 7, 13, 193

Why are those the prime factors of the number 281,008?

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 281,008

281,008
Factor Arrows
2140,504
Factor Arrows
270,252
Factor Arrows
235,126
Factor Arrows
217,563
Factor Arrows
72,509
Factor Arrows
13193

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, 7, 13, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 13 x 193 = 281,008

This can also be written as 24 x 71 x 131 x 1931 = 281,008

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


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