Q: What are the prime factors of the number 12,151,695?

 A: 3, 5, 149, 5437

Why are those the prime factors of the number 12,151,695?

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 12,151,695

12,151,695
Factor Arrows
34,050,565
Factor Arrows
5810,113
Factor Arrows
1495,437

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:

3, 5, 149, 5437

We can check our work by multiplying all of the prime factors together: 3 x 5 x 149 x 5,437 = 12,151,695

This can also be written as 31 x 51 x 1491 x 5,4371 = 12,151,695

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


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