Q: What are the prime factors of the number 12,151,152?

 A: 2, 3, 13, 6491

Why are those the prime factors of the number 12,151,152?

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 12,151,152

12,151,152
Factor Arrows
26,075,576
Factor Arrows
23,037,788
Factor Arrows
21,518,894
Factor Arrows
2759,447
Factor Arrows
3253,149
Factor Arrows
384,383
Factor Arrows
136,491

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, 13, 6491

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 13 x 6,491 = 12,151,152

This can also be written as 24 x 32 x 131 x 6,4911 = 12,151,152

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


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