Q: What are the prime factors of the number 15,392,400?

 A: 2, 3, 5, 101, 127

Why are those the prime factors of the number 15,392,400?

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 15,392,400

15,392,400
Factor Arrows
27,696,200
Factor Arrows
23,848,100
Factor Arrows
21,924,050
Factor Arrows
2962,025
Factor Arrows
3320,675
Factor Arrows
564,135
Factor Arrows
512,827
Factor Arrows
101127

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, 101, 127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 101 x 127 = 15,392,400

This can also be written as 24 x 31 x 52 x 1011 x 1271 = 15,392,400

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


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