Q: What are the prime factors of the number 12,013,353?

 A: 3, 11, 97, 139

Why are those the prime factors of the number 12,013,353?

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 12,013,353

12,013,353
Factor Arrows
34,004,451
Factor Arrows
31,334,817
Factor Arrows
3444,939
Factor Arrows
3148,313
Factor Arrows
1113,483
Factor Arrows
97139

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, 11, 97, 139

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 11 x 97 x 139 = 12,013,353

This can also be written as 34 x 111 x 971 x 1391 = 12,013,353

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


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