Q: What are the prime factors of the number 19,089,248?

 A: 2, 43, 13873

Why are those the prime factors of the number 19,089,248?

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 19,089,248

19,089,248
Factor Arrows
29,544,624
Factor Arrows
24,772,312
Factor Arrows
22,386,156
Factor Arrows
21,193,078
Factor Arrows
2596,539
Factor Arrows
4313,873

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, 43, 13873

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 43 x 13,873 = 19,089,248

This can also be written as 25 x 431 x 13,8731 = 19,089,248

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


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