Q: What are the prime factors of the number 212,858,672?

 A: 2, 13, 19, 53861

Why are those the prime factors of the number 212,858,672?

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 212,858,672

212,858,672
Factor Arrows
2106,429,336
Factor Arrows
253,214,668
Factor Arrows
226,607,334
Factor Arrows
213,303,667
Factor Arrows
131,023,359
Factor Arrows
1953,861

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, 13, 19, 53861

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 19 x 53,861 = 212,858,672

This can also be written as 24 x 131 x 191 x 53,8611 = 212,858,672

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


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