Q: What are the prime factors of the number 13,410,000?

 A: 2, 3, 5, 149

Why are those the prime factors of the number 13,410,000?

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 13,410,000

13,410,000
Factor Arrows
26,705,000
Factor Arrows
23,352,500
Factor Arrows
21,676,250
Factor Arrows
2838,125
Factor Arrows
3279,375
Factor Arrows
393,125
Factor Arrows
518,625
Factor Arrows
53,725
Factor Arrows
5745
Factor Arrows
5149

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, 5, 149

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 5 x 5 x 5 x 5 x 149 = 13,410,000

This can also be written as 24 x 32 x 54 x 1491 = 13,410,000

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


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