Q: What are the prime factors of the number 65,661,232?

 A: 2, 7, 13, 3469

Why are those the prime factors of the number 65,661,232?

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 65,661,232

65,661,232
Factor Arrows
232,830,616
Factor Arrows
216,415,308
Factor Arrows
28,207,654
Factor Arrows
24,103,827
Factor Arrows
7586,261
Factor Arrows
1345,097
Factor Arrows
133,469

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, 7, 13, 3469

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 13 x 13 x 3,469 = 65,661,232

This can also be written as 24 x 71 x 132 x 3,4691 = 65,661,232

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


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