Q: What are the prime factors of the number 27,145,152?

 A: 2, 3, 23, 683

Why are those the prime factors of the number 27,145,152?

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 27,145,152

27,145,152
Factor Arrows
213,572,576
Factor Arrows
26,786,288
Factor Arrows
23,393,144
Factor Arrows
21,696,572
Factor Arrows
2848,286
Factor Arrows
2424,143
Factor Arrows
3141,381
Factor Arrows
347,127
Factor Arrows
315,709
Factor Arrows
23683

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, 23, 683

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 3 x 3 x 3 x 23 x 683 = 27,145,152

This can also be written as 26 x 33 x 231 x 6831 = 27,145,152

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


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