Q: What are the prime factors of the number 71,143,866?

 A: 2, 3, 19, 69341

Why are those the prime factors of the number 71,143,866?

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 71,143,866

71,143,866
Factor Arrows
235,571,933
Factor Arrows
311,857,311
Factor Arrows
33,952,437
Factor Arrows
31,317,479
Factor Arrows
1969,341

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, 19, 69341

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 19 x 69,341 = 71,143,866

This can also be written as 21 x 33 x 191 x 69,3411 = 71,143,866

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


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