Q: What are the prime factors of the number 163,098,080?

 A: 2, 5, 797, 1279

Why are those the prime factors of the number 163,098,080?

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 163,098,080

163,098,080
Factor Arrows
281,549,040
Factor Arrows
240,774,520
Factor Arrows
220,387,260
Factor Arrows
210,193,630
Factor Arrows
25,096,815
Factor Arrows
51,019,363
Factor Arrows
7971,279

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, 797, 1279

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 797 x 1,279 = 163,098,080

This can also be written as 25 x 51 x 7971 x 1,2791 = 163,098,080

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


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