Q: What are the prime factors of the number 686,848?

 A: 2, 2683

Why are those the prime factors of the number 686,848?

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 686,848

686,848
Factor Arrows
2343,424
Factor Arrows
2171,712
Factor Arrows
285,856
Factor Arrows
242,928
Factor Arrows
221,464
Factor Arrows
210,732
Factor Arrows
25,366
Factor Arrows
22,683

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, 2683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2,683 = 686,848

This can also be written as 28 x 2,6831 = 686,848

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


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