Q: What are the prime factors of the number 220,212,202?

 A: 2, 7, 43, 47, 181

Why are those the prime factors of the number 220,212,202?

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 220,212,202

220,212,202
Factor Arrows
2110,106,101
Factor Arrows
715,729,443
Factor Arrows
43365,801
Factor Arrows
438,507
Factor Arrows
47181

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, 7, 43, 47, 181

We can check our work by multiplying all of the prime factors together: 2 x 7 x 43 x 43 x 47 x 181 = 220,212,202

This can also be written as 21 x 71 x 432 x 471 x 1811 = 220,212,202

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


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