Q: What are the prime factors of the number 422,202,200?

 A: 2, 5, 7, 97, 3109

Why are those the prime factors of the number 422,202,200?

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 422,202,200

422,202,200
Factor Arrows
2211,101,100
Factor Arrows
2105,550,550
Factor Arrows
252,775,275
Factor Arrows
510,555,055
Factor Arrows
52,111,011
Factor Arrows
7301,573
Factor Arrows
973,109

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, 7, 97, 3109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 7 x 97 x 3,109 = 422,202,200

This can also be written as 23 x 52 x 71 x 971 x 3,1091 = 422,202,200

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


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