Q: What are the prime factors of the number 12,234,624?

 A: 2, 3, 151, 211

Why are those the prime factors of the number 12,234,624?

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 12,234,624

12,234,624
Factor Arrows
26,117,312
Factor Arrows
23,058,656
Factor Arrows
21,529,328
Factor Arrows
2764,664
Factor Arrows
2382,332
Factor Arrows
2191,166
Factor Arrows
295,583
Factor Arrows
331,861
Factor Arrows
151211

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, 151, 211

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 3 x 151 x 211 = 12,234,624

This can also be written as 27 x 31 x 1511 x 2111 = 12,234,624

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


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