Q: What are the prime factors of the number 353,021,550?

 A: 2, 3, 5, 7, 336211

Why are those the prime factors of the number 353,021,550?

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 353,021,550

353,021,550
Factor Arrows
2176,510,775
Factor Arrows
358,836,925
Factor Arrows
511,767,385
Factor Arrows
52,353,477
Factor Arrows
7336,211

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, 336211

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 336,211 = 353,021,550

This can also be written as 21 x 31 x 52 x 71 x 336,2111 = 353,021,550

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


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