Q: What are the prime factors of the number 82,905,222?

 A: 2, 3, 31, 61, 7307

Why are those the prime factors of the number 82,905,222?

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 82,905,222

82,905,222
Factor Arrows
241,452,611
Factor Arrows
313,817,537
Factor Arrows
31445,727
Factor Arrows
617,307

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, 31, 61, 7307

We can check our work by multiplying all of the prime factors together: 2 x 3 x 31 x 61 x 7,307 = 82,905,222

This can also be written as 21 x 31 x 311 x 611 x 7,3071 = 82,905,222

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


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