Q: What are the prime factors of the number 211,201,500?

 A: 2, 3, 5, 103, 1367

Why are those the prime factors of the number 211,201,500?

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 211,201,500

211,201,500
Factor Arrows
2105,600,750
Factor Arrows
252,800,375
Factor Arrows
317,600,125
Factor Arrows
53,520,025
Factor Arrows
5704,005
Factor Arrows
5140,801
Factor Arrows
1031,367

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, 103, 1367

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 5 x 103 x 1,367 = 211,201,500

This can also be written as 22 x 31 x 53 x 1031 x 1,3671 = 211,201,500

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


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