Q: What are the prime factors of the number 65,664,240?

 A: 2, 3, 5, 273601

Why are those the prime factors of the number 65,664,240?

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 65,664,240

65,664,240
Factor Arrows
232,832,120
Factor Arrows
216,416,060
Factor Arrows
28,208,030
Factor Arrows
24,104,015
Factor Arrows
31,368,005
Factor Arrows
5273,601

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, 5, 273601

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 273,601 = 65,664,240

This can also be written as 24 x 31 x 51 x 273,6011 = 65,664,240

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


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