Q: What are the prime factors of the number 68,608,464?

 A: 2, 3, 17, 83, 1013

Why are those the prime factors of the number 68,608,464?

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 68,608,464

68,608,464
Factor Arrows
234,304,232
Factor Arrows
217,152,116
Factor Arrows
28,576,058
Factor Arrows
24,288,029
Factor Arrows
31,429,343
Factor Arrows
1784,079
Factor Arrows
831,013

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, 17, 83, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 83 x 1,013 = 68,608,464

This can also be written as 24 x 31 x 171 x 831 x 1,0131 = 68,608,464

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


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