Q: What are the prime factors of the number 281,600,672?

 A: 2, 19, 29, 15971

Why are those the prime factors of the number 281,600,672?

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 281,600,672

281,600,672
Factor Arrows
2140,800,336
Factor Arrows
270,400,168
Factor Arrows
235,200,084
Factor Arrows
217,600,042
Factor Arrows
28,800,021
Factor Arrows
19463,159
Factor Arrows
2915,971

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, 19, 29, 15971

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 29 x 15,971 = 281,600,672

This can also be written as 25 x 191 x 291 x 15,9711 = 281,600,672

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


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