Q: What are the prime factors of the number 47,248,992?

 A: 2, 3, 7, 23, 1019

Why are those the prime factors of the number 47,248,992?

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 47,248,992

47,248,992
Factor Arrows
223,624,496
Factor Arrows
211,812,248
Factor Arrows
25,906,124
Factor Arrows
22,953,062
Factor Arrows
21,476,531
Factor Arrows
3492,177
Factor Arrows
3164,059
Factor Arrows
723,437
Factor Arrows
231,019

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, 23, 1019

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 23 x 1,019 = 47,248,992

This can also be written as 25 x 32 x 71 x 231 x 1,0191 = 47,248,992

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


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