Q: What are the prime factors of the number 18,800,516?

 A: 2, 7, 71, 193

Why are those the prime factors of the number 18,800,516?

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 18,800,516

18,800,516
Factor Arrows
29,400,258
Factor Arrows
24,700,129
Factor Arrows
7671,447
Factor Arrows
795,921
Factor Arrows
713,703
Factor Arrows
71193

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, 7, 71, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 7 x 71 x 193 = 18,800,516

This can also be written as 22 x 73 x 711 x 1931 = 18,800,516

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


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