Q: What are the prime factors of the number 71,477,670?

 A: 2, 3, 5, 11, 167, 1297

Why are those the prime factors of the number 71,477,670?

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 71,477,670

71,477,670
Factor Arrows
235,738,835
Factor Arrows
311,912,945
Factor Arrows
52,382,589
Factor Arrows
11216,599
Factor Arrows
1671,297

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, 5, 11, 167, 1297

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 167 x 1,297 = 71,477,670

This can also be written as 21 x 31 x 51 x 111 x 1671 x 1,2971 = 71,477,670

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


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