Q: What are the prime factors of the number 73,141,524?

 A: 2, 3, 31, 65539

Why are those the prime factors of the number 73,141,524?

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 73,141,524

73,141,524
Factor Arrows
236,570,762
Factor Arrows
218,285,381
Factor Arrows
36,095,127
Factor Arrows
32,031,709
Factor Arrows
3165,539

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, 31, 65539

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 31 x 65,539 = 73,141,524

This can also be written as 22 x 32 x 311 x 65,5391 = 73,141,524

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


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