Q: What are the prime factors of the number 163,150,650?

 A: 2, 3, 5, 13, 167

Why are those the prime factors of the number 163,150,650?

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 163,150,650

163,150,650
Factor Arrows
281,575,325
Factor Arrows
327,191,775
Factor Arrows
39,063,925
Factor Arrows
51,812,785
Factor Arrows
5362,557
Factor Arrows
1327,889
Factor Arrows
167167

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, 13, 167

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 13 x 167 x 167 = 163,150,650

This can also be written as 21 x 32 x 52 x 131 x 1672 = 163,150,650

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


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