Q: What are the prime factors of the number 211,742,550?

 A: 2, 3, 5, 470539

Why are those the prime factors of the number 211,742,550?

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 211,742,550

211,742,550
Factor Arrows
2105,871,275
Factor Arrows
335,290,425
Factor Arrows
311,763,475
Factor Arrows
52,352,695
Factor Arrows
5470,539

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, 470539

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 470,539 = 211,742,550

This can also be written as 21 x 32 x 52 x 470,5391 = 211,742,550

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


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