Q: What are the prime factors of the number 53,443,072?

 A: 2, 104381

Why are those the prime factors of the number 53,443,072?

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 53,443,072

53,443,072
Factor Arrows
226,721,536
Factor Arrows
213,360,768
Factor Arrows
26,680,384
Factor Arrows
23,340,192
Factor Arrows
21,670,096
Factor Arrows
2835,048
Factor Arrows
2417,524
Factor Arrows
2208,762
Factor Arrows
2104,381

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, 104381

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 2 x 104,381 = 53,443,072

This can also be written as 29 x 104,3811 = 53,443,072

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


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