Q: What are the prime factors of the number 735,536,160?

 A: 2, 3, 5, 170263

Why are those the prime factors of the number 735,536,160?

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 735,536,160

735,536,160
Factor Arrows
2367,768,080
Factor Arrows
2183,884,040
Factor Arrows
291,942,020
Factor Arrows
245,971,010
Factor Arrows
222,985,505
Factor Arrows
37,661,835
Factor Arrows
32,553,945
Factor Arrows
3851,315
Factor Arrows
5170,263

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, 5, 170263

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 5 x 170,263 = 735,536,160

This can also be written as 25 x 33 x 51 x 170,2631 = 735,536,160

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


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