Q: What are the prime factors of the number 67,338,864?

 A: 2, 3, 223, 233

Why are those the prime factors of the number 67,338,864?

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 67,338,864

67,338,864
Factor Arrows
233,669,432
Factor Arrows
216,834,716
Factor Arrows
28,417,358
Factor Arrows
24,208,679
Factor Arrows
31,402,893
Factor Arrows
3467,631
Factor Arrows
3155,877
Factor Arrows
351,959
Factor Arrows
223233

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, 223, 233

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 223 x 233 = 67,338,864

This can also be written as 24 x 34 x 2231 x 2331 = 67,338,864

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


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