Q: What are the prime factors of the number 358,331,556?

 A: 2, 3, 11, 43, 63131

Why are those the prime factors of the number 358,331,556?

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 358,331,556

358,331,556
Factor Arrows
2179,165,778
Factor Arrows
289,582,889
Factor Arrows
329,860,963
Factor Arrows
112,714,633
Factor Arrows
4363,131

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, 11, 43, 63131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 43 x 63,131 = 358,331,556

This can also be written as 22 x 31 x 111 x 431 x 63,1311 = 358,331,556

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


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