Q: What are the prime factors of the number 211,334,500?

 A: 2, 5, 13, 41, 61

Why are those the prime factors of the number 211,334,500?

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 211,334,500

211,334,500
Factor Arrows
2105,667,250
Factor Arrows
252,833,625
Factor Arrows
510,566,725
Factor Arrows
52,113,345
Factor Arrows
5422,669
Factor Arrows
1332,513
Factor Arrows
132,501
Factor Arrows
4161

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, 5, 13, 41, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 13 x 13 x 41 x 61 = 211,334,500

This can also be written as 22 x 53 x 132 x 411 x 611 = 211,334,500

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


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