Q: What are the prime factors of the number 210,333,333?

 A: 3, 7, 17, 4951

Why are those the prime factors of the number 210,333,333?

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 210,333,333

210,333,333
Factor Arrows
370,111,111
Factor Arrows
710,015,873
Factor Arrows
71,430,839
Factor Arrows
1784,167
Factor Arrows
174,951

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:

3, 7, 17, 4951

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 17 x 17 x 4,951 = 210,333,333

This can also be written as 31 x 72 x 172 x 4,9511 = 210,333,333

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


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