Q: What are the prime factors of the number 88,641,152?

 A: 2, 31, 89, 251

Why are those the prime factors of the number 88,641,152?

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 88,641,152

88,641,152
Factor Arrows
244,320,576
Factor Arrows
222,160,288
Factor Arrows
211,080,144
Factor Arrows
25,540,072
Factor Arrows
22,770,036
Factor Arrows
21,385,018
Factor Arrows
2692,509
Factor Arrows
3122,339
Factor Arrows
89251

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, 31, 89, 251

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 31 x 89 x 251 = 88,641,152

This can also be written as 27 x 311 x 891 x 2511 = 88,641,152

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


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