Q: What are the prime factors of the number 71,770,524?

 A: 2, 3, 7, 19, 193, 233

Why are those the prime factors of the number 71,770,524?

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 71,770,524

71,770,524
Factor Arrows
235,885,262
Factor Arrows
217,942,631
Factor Arrows
35,980,877
Factor Arrows
7854,411
Factor Arrows
1944,969
Factor Arrows
193233

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, 19, 193, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 19 x 193 x 233 = 71,770,524

This can also be written as 22 x 31 x 71 x 191 x 1931 x 2331 = 71,770,524

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


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