Q: What are the prime factors of the number 65,373,245?

 A: 5, 7, 17, 23, 281

Why are those the prime factors of the number 65,373,245?

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 65,373,245

65,373,245
Factor Arrows
513,074,649
Factor Arrows
71,867,807
Factor Arrows
17109,871
Factor Arrows
176,463
Factor Arrows
23281

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:

5, 7, 17, 23, 281

We can check our work by multiplying all of the prime factors together: 5 x 7 x 17 x 17 x 23 x 281 = 65,373,245

This can also be written as 51 x 71 x 172 x 231 x 2811 = 65,373,245

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


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