Q: What are the prime factors of the number 321,042,051?

 A: 3, 11, 107, 30307

Why are those the prime factors of the number 321,042,051?

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 321,042,051

321,042,051
Factor Arrows
3107,014,017
Factor Arrows
335,671,339
Factor Arrows
113,242,849
Factor Arrows
10730,307

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:

3, 11, 107, 30307

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 107 x 30,307 = 321,042,051

This can also be written as 32 x 111 x 1071 x 30,3071 = 321,042,051

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


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