Q: What are the prime factors of the number 211,447,544?

 A: 2, 7, 11, 49037

Why are those the prime factors of the number 211,447,544?

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 211,447,544

211,447,544
Factor Arrows
2105,723,772
Factor Arrows
252,861,886
Factor Arrows
226,430,943
Factor Arrows
73,775,849
Factor Arrows
7539,407
Factor Arrows
1149,037

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, 11, 49037

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 11 x 49,037 = 211,447,544

This can also be written as 23 x 72 x 111 x 49,0371 = 211,447,544

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


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