Q: What are the prime factors of the number 706,272?

 A: 2, 3, 7, 1051

Why are those the prime factors of the number 706,272?

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 706,272

706,272
Factor Arrows
2353,136
Factor Arrows
2176,568
Factor Arrows
288,284
Factor Arrows
244,142
Factor Arrows
222,071
Factor Arrows
37,357
Factor Arrows
71,051

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, 7, 1051

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 7 x 1,051 = 706,272

This can also be written as 25 x 31 x 71 x 1,0511 = 706,272

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


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