Q: What are the prime factors of the number 30,778,531?

 A: 7, 23, 53, 3607

Why are those the prime factors of the number 30,778,531?

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 30,778,531

30,778,531
Factor Arrows
74,396,933
Factor Arrows
23191,171
Factor Arrows
533,607

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:

7, 23, 53, 3607

We can check our work by multiplying all of the prime factors together: 7 x 23 x 53 x 3,607 = 30,778,531

This can also be written as 71 x 231 x 531 x 3,6071 = 30,778,531

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


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