Q: What are the prime factors of the number 43,360,512?

 A: 2, 3, 13, 43, 101

Why are those the prime factors of the number 43,360,512?

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 43,360,512

43,360,512
Factor Arrows
221,680,256
Factor Arrows
210,840,128
Factor Arrows
25,420,064
Factor Arrows
22,710,032
Factor Arrows
21,355,016
Factor Arrows
2677,508
Factor Arrows
2338,754
Factor Arrows
2169,377
Factor Arrows
356,459
Factor Arrows
134,343
Factor Arrows
43101

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, 13, 43, 101

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 13 x 43 x 101 = 43,360,512

This can also be written as 28 x 31 x 131 x 431 x 1011 = 43,360,512

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


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