Q: What are the prime factors of the number 354,420,055?

 A: 5, 11, 31, 97, 2143

Why are those the prime factors of the number 354,420,055?

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 354,420,055

354,420,055
Factor Arrows
570,884,011
Factor Arrows
116,444,001
Factor Arrows
31207,871
Factor Arrows
972,143

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:

5, 11, 31, 97, 2143

We can check our work by multiplying all of the prime factors together: 5 x 11 x 31 x 97 x 2,143 = 354,420,055

This can also be written as 51 x 111 x 311 x 971 x 2,1431 = 354,420,055

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


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