Q: What are the prime factors of the number 30,310,119?

 A: 3, 7, 103, 173

Why are those the prime factors of the number 30,310,119?

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 30,310,119

30,310,119
Factor Arrows
310,103,373
Factor Arrows
33,367,791
Factor Arrows
31,122,597
Factor Arrows
3374,199
Factor Arrows
3124,733
Factor Arrows
717,819
Factor Arrows
103173

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, 7, 103, 173

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 103 x 173 = 30,310,119

This can also be written as 35 x 71 x 1031 x 1731 = 30,310,119

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


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