Q: What are the prime factors of the number 65,858,660?

 A: 2, 5, 7, 23, 113, 181

Why are those the prime factors of the number 65,858,660?

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 65,858,660

65,858,660
Factor Arrows
232,929,330
Factor Arrows
216,464,665
Factor Arrows
53,292,933
Factor Arrows
7470,419
Factor Arrows
2320,453
Factor Arrows
113181

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, 7, 23, 113, 181

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 23 x 113 x 181 = 65,858,660

This can also be written as 22 x 51 x 71 x 231 x 1131 x 1811 = 65,858,660

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


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