Q: What are the prime factors of the number 70,271,394?

 A: 2, 3, 23, 107, 4759

Why are those the prime factors of the number 70,271,394?

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 70,271,394

70,271,394
Factor Arrows
235,135,697
Factor Arrows
311,711,899
Factor Arrows
23509,213
Factor Arrows
1074,759

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, 23, 107, 4759

We can check our work by multiplying all of the prime factors together: 2 x 3 x 23 x 107 x 4,759 = 70,271,394

This can also be written as 21 x 31 x 231 x 1071 x 4,7591 = 70,271,394

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


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