Q: What are the prime factors of the number 162,336,320?

 A: 2, 5, 507301

Why are those the prime factors of the number 162,336,320?

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 162,336,320

162,336,320
Factor Arrows
281,168,160
Factor Arrows
240,584,080
Factor Arrows
220,292,040
Factor Arrows
210,146,020
Factor Arrows
25,073,010
Factor Arrows
22,536,505
Factor Arrows
5507,301

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, 5, 507301

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 507,301 = 162,336,320

This can also be written as 26 x 51 x 507,3011 = 162,336,320

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


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