Q: What are the prime factors of the number 71,651,584?

 A: 2, 19, 14731

Why are those the prime factors of the number 71,651,584?

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 71,651,584

71,651,584
Factor Arrows
235,825,792
Factor Arrows
217,912,896
Factor Arrows
28,956,448
Factor Arrows
24,478,224
Factor Arrows
22,239,112
Factor Arrows
21,119,556
Factor Arrows
2559,778
Factor Arrows
2279,889
Factor Arrows
1914,731

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, 19, 14731

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19 x 14,731 = 71,651,584

This can also be written as 28 x 191 x 14,7311 = 71,651,584

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


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