Q: What are the prime factors of the number 218,562,048?

 A: 2, 3, 47431

Why are those the prime factors of the number 218,562,048?

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 218,562,048

218,562,048
Factor Arrows
2109,281,024
Factor Arrows
254,640,512
Factor Arrows
227,320,256
Factor Arrows
213,660,128
Factor Arrows
26,830,064
Factor Arrows
23,415,032
Factor Arrows
21,707,516
Factor Arrows
2853,758
Factor Arrows
2426,879
Factor Arrows
3142,293
Factor Arrows
347,431

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, 47431

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 2 x 3 x 3 x 47,431 = 218,562,048

This can also be written as 29 x 32 x 47,4311 = 218,562,048

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


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