Q: What are the prime factors of the number 845,168?

 A: 2, 101, 523

Why are those the prime factors of the number 845,168?

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 845,168

845,168
Factor Arrows
2422,584
Factor Arrows
2211,292
Factor Arrows
2105,646
Factor Arrows
252,823
Factor Arrows
101523

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, 101, 523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 101 x 523 = 845,168

This can also be written as 24 x 1011 x 5231 = 845,168

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


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