Q: What are the prime factors of the number 72,058,491?

 A: 3, 103, 2879

Why are those the prime factors of the number 72,058,491?

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 72,058,491

72,058,491
Factor Arrows
324,019,497
Factor Arrows
38,006,499
Factor Arrows
32,668,833
Factor Arrows
3889,611
Factor Arrows
3296,537
Factor Arrows
1032,879

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:

3, 103, 2879

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 103 x 2,879 = 72,058,491

This can also be written as 35 x 1031 x 2,8791 = 72,058,491

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


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