Q: What are the prime factors of the number 12,847,653?

 A: 3, 7, 13, 83

Why are those the prime factors of the number 12,847,653?

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 12,847,653

12,847,653
Factor Arrows
34,282,551
Factor Arrows
31,427,517
Factor Arrows
3475,839
Factor Arrows
3158,613
Factor Arrows
352,871
Factor Arrows
77,553
Factor Arrows
71,079
Factor Arrows
1383

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, 7, 13, 83

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 7 x 13 x 83 = 12,847,653

This can also be written as 35 x 72 x 131 x 831 = 12,847,653

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


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