Q: What are the prime factors of the number 220,021,410?

 A: 2, 3, 5, 7, 1047721

Why are those the prime factors of the number 220,021,410?

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 220,021,410

220,021,410
Factor Arrows
2110,010,705
Factor Arrows
336,670,235
Factor Arrows
57,334,047
Factor Arrows
71,047,721

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, 7, 1047721

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 1,047,721 = 220,021,410

This can also be written as 21 x 31 x 51 x 71 x 1,047,7211 = 220,021,410

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


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