Q: What are the prime factors of the number 65,643,264?

 A: 2, 3, 9497

Why are those the prime factors of the number 65,643,264?

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 65,643,264

65,643,264
Factor Arrows
232,821,632
Factor Arrows
216,410,816
Factor Arrows
28,205,408
Factor Arrows
24,102,704
Factor Arrows
22,051,352
Factor Arrows
21,025,676
Factor Arrows
2512,838
Factor Arrows
2256,419
Factor Arrows
385,473
Factor Arrows
328,491
Factor Arrows
39,497

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, 3, 9497

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 2 x 2 x 3 x 3 x 3 x 9,497 = 65,643,264

This can also be written as 28 x 33 x 9,4971 = 65,643,264

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


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