Q: What are the prime factors of the number 75,587,456?

 A: 2, 7, 29, 2909

Why are those the prime factors of the number 75,587,456?

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 75,587,456

75,587,456
Factor Arrows
237,793,728
Factor Arrows
218,896,864
Factor Arrows
29,448,432
Factor Arrows
24,724,216
Factor Arrows
22,362,108
Factor Arrows
21,181,054
Factor Arrows
2590,527
Factor Arrows
784,361
Factor Arrows
292,909

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, 7, 29, 2909

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 7 x 29 x 2,909 = 75,587,456

This can also be written as 27 x 71 x 291 x 2,9091 = 75,587,456

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


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