Q: What are the prime factors of the number 68,470,584?

 A: 2, 3, 7, 13, 107, 293

Why are those the prime factors of the number 68,470,584?

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 68,470,584

68,470,584
Factor Arrows
234,235,292
Factor Arrows
217,117,646
Factor Arrows
28,558,823
Factor Arrows
32,852,941
Factor Arrows
7407,563
Factor Arrows
1331,351
Factor Arrows
107293

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, 7, 13, 107, 293

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 13 x 107 x 293 = 68,470,584

This can also be written as 23 x 31 x 71 x 131 x 1071 x 2931 = 68,470,584

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


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