Q: What are the prime factors of the number 681,056?

 A: 2, 21283

Why are those the prime factors of the number 681,056?

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 681,056

681,056
Factor Arrows
2340,528
Factor Arrows
2170,264
Factor Arrows
285,132
Factor Arrows
242,566
Factor Arrows
221,283

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, 21283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 21,283 = 681,056

This can also be written as 25 x 21,2831 = 681,056

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


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