Q: What are the prime factors of the number 65,188,387?

 A: 11, 17, 43, 67

Why are those the prime factors of the number 65,188,387?

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 65,188,387

65,188,387
Factor Arrows
115,926,217
Factor Arrows
11538,747
Factor Arrows
1148,977
Factor Arrows
172,881
Factor Arrows
4367

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:

11, 17, 43, 67

We can check our work by multiplying all of the prime factors together: 11 x 11 x 11 x 17 x 43 x 67 = 65,188,387

This can also be written as 113 x 171 x 431 x 671 = 65,188,387

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


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