Q: What are the prime factors of the number 745,008,288?

 A: 2, 3, 359, 21617

Why are those the prime factors of the number 745,008,288?

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 745,008,288

745,008,288
Factor Arrows
2372,504,144
Factor Arrows
2186,252,072
Factor Arrows
293,126,036
Factor Arrows
246,563,018
Factor Arrows
223,281,509
Factor Arrows
37,760,503
Factor Arrows
35921,617

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, 359, 21617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 359 x 21,617 = 745,008,288

This can also be written as 25 x 31 x 3591 x 21,6171 = 745,008,288

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


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