Q: What are the prime factors of the number 47,461,875?

 A: 3, 5, 17, 1489

Why are those the prime factors of the number 47,461,875?

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 47,461,875

47,461,875
Factor Arrows
315,820,625
Factor Arrows
53,164,125
Factor Arrows
5632,825
Factor Arrows
5126,565
Factor Arrows
525,313
Factor Arrows
171,489

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:

3, 5, 17, 1489

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 5 x 17 x 1,489 = 47,461,875

This can also be written as 31 x 54 x 171 x 1,4891 = 47,461,875

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


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