Q: What are the prime factors of the number 220,430,300?

 A: 2, 5, 103, 21401

Why are those the prime factors of the number 220,430,300?

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 220,430,300

220,430,300
Factor Arrows
2110,215,150
Factor Arrows
255,107,575
Factor Arrows
511,021,515
Factor Arrows
52,204,303
Factor Arrows
10321,401

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, 5, 103, 21401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 103 x 21,401 = 220,430,300

This can also be written as 22 x 52 x 1031 x 21,4011 = 220,430,300

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


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