Q: What are the prime factors of the number 131,105,360?

 A: 2, 5, 17, 96401

Why are those the prime factors of the number 131,105,360?

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 131,105,360

131,105,360
Factor Arrows
265,552,680
Factor Arrows
232,776,340
Factor Arrows
216,388,170
Factor Arrows
28,194,085
Factor Arrows
51,638,817
Factor Arrows
1796,401

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, 17, 96401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 17 x 96,401 = 131,105,360

This can also be written as 24 x 51 x 171 x 96,4011 = 131,105,360

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


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