Q: What are the prime factors of the number 47,091,213?

 A: 3, 13, 4969

Why are those the prime factors of the number 47,091,213?

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 47,091,213

47,091,213
Factor Arrows
315,697,071
Factor Arrows
35,232,357
Factor Arrows
31,744,119
Factor Arrows
3581,373
Factor Arrows
3193,791
Factor Arrows
364,597
Factor Arrows
134,969

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, 13, 4969

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 13 x 4,969 = 47,091,213

This can also be written as 36 x 131 x 4,9691 = 47,091,213

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


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