Q: What are the prime factors of the number 65,112,448?

 A: 2, 17, 23, 1301

Why are those the prime factors of the number 65,112,448?

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 65,112,448

65,112,448
Factor Arrows
232,556,224
Factor Arrows
216,278,112
Factor Arrows
28,139,056
Factor Arrows
24,069,528
Factor Arrows
22,034,764
Factor Arrows
21,017,382
Factor Arrows
2508,691
Factor Arrows
1729,923
Factor Arrows
231,301

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, 17, 23, 1301

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 17 x 23 x 1,301 = 65,112,448

This can also be written as 27 x 171 x 231 x 1,3011 = 65,112,448

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


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