Q: What are the prime factors of the number 71,218,854?

 A: 2, 3, 7, 80747

Why are those the prime factors of the number 71,218,854?

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 71,218,854

71,218,854
Factor Arrows
235,609,427
Factor Arrows
311,869,809
Factor Arrows
33,956,603
Factor Arrows
7565,229
Factor Arrows
780,747

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, 3, 7, 80747

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 80,747 = 71,218,854

This can also be written as 21 x 32 x 72 x 80,7471 = 71,218,854

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


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