Q: What are the prime factors of the number 131,038,912?

 A: 2, 23, 89021

Why are those the prime factors of the number 131,038,912?

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 131,038,912

131,038,912
Factor Arrows
265,519,456
Factor Arrows
232,759,728
Factor Arrows
216,379,864
Factor Arrows
28,189,932
Factor Arrows
24,094,966
Factor Arrows
22,047,483
Factor Arrows
2389,021

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, 23, 89021

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 23 x 89,021 = 131,038,912

This can also be written as 26 x 231 x 89,0211 = 131,038,912

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


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