Q: What are the prime factors of the number 726,460,704?

 A: 2, 3, 23, 139, 263

Why are those the prime factors of the number 726,460,704?

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 726,460,704

726,460,704
Factor Arrows
2363,230,352
Factor Arrows
2181,615,176
Factor Arrows
290,807,588
Factor Arrows
245,403,794
Factor Arrows
222,701,897
Factor Arrows
37,567,299
Factor Arrows
32,522,433
Factor Arrows
3840,811
Factor Arrows
2336,557
Factor Arrows
139263

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, 23, 139, 263

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 3 x 3 x 23 x 139 x 263 = 726,460,704

This can also be written as 25 x 33 x 231 x 1391 x 2631 = 726,460,704

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


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