Q: What are the prime factors of the number 12,943,395?

 A: 3, 5, 53, 67

Why are those the prime factors of the number 12,943,395?

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 12,943,395

12,943,395
Factor Arrows
34,314,465
Factor Arrows
31,438,155
Factor Arrows
3479,385
Factor Arrows
3159,795
Factor Arrows
353,265
Factor Arrows
317,755
Factor Arrows
53,551
Factor Arrows
5367

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, 5, 53, 67

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 5 x 53 x 67 = 12,943,395

This can also be written as 36 x 51 x 531 x 671 = 12,943,395

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


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