Q: What are the prime factors of the number 23,331,140?

 A: 2, 5, 7, 17, 9803

Why are those the prime factors of the number 23,331,140?

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 23,331,140

23,331,140
Factor Arrows
211,665,570
Factor Arrows
25,832,785
Factor Arrows
51,166,557
Factor Arrows
7166,651
Factor Arrows
179,803

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, 5, 7, 17, 9803

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 17 x 9,803 = 23,331,140

This can also be written as 22 x 51 x 71 x 171 x 9,8031 = 23,331,140

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


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