Q: What are the prime factors of the number 43,053,360?

 A: 2, 3, 5, 7, 523

Why are those the prime factors of the number 43,053,360?

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 43,053,360

43,053,360
Factor Arrows
221,526,680
Factor Arrows
210,763,340
Factor Arrows
25,381,670
Factor Arrows
22,690,835
Factor Arrows
3896,945
Factor Arrows
5179,389
Factor Arrows
725,627
Factor Arrows
73,661
Factor Arrows
7523

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, 7, 523

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 7 x 7 x 7 x 523 = 43,053,360

This can also be written as 24 x 31 x 51 x 73 x 5231 = 43,053,360

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


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