Q: What are the prime factors of the number 706,060,557?

 A: 3, 31, 157, 199

Why are those the prime factors of the number 706,060,557?

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 706,060,557

706,060,557
Factor Arrows
3235,353,519
Factor Arrows
378,451,173
Factor Arrows
326,150,391
Factor Arrows
38,716,797
Factor Arrows
32,905,599
Factor Arrows
3968,533
Factor Arrows
3131,243
Factor Arrows
157199

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:

3, 31, 157, 199

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 31 x 157 x 199 = 706,060,557

This can also be written as 36 x 311 x 1571 x 1991 = 706,060,557

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


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