Q: What are the prime factors of the number 68,510,448?

 A: 2, 3, 67, 263

Why are those the prime factors of the number 68,510,448?

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 68,510,448

68,510,448
Factor Arrows
234,255,224
Factor Arrows
217,127,612
Factor Arrows
28,563,806
Factor Arrows
24,281,903
Factor Arrows
31,427,301
Factor Arrows
3475,767
Factor Arrows
3158,589
Factor Arrows
352,863
Factor Arrows
317,621
Factor Arrows
67263

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, 67, 263

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 67 x 263 = 68,510,448

This can also be written as 24 x 35 x 671 x 2631 = 68,510,448

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


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