Q: What are the prime factors of the number 300,030,000?

 A: 2, 3, 5, 73, 137

Why are those the prime factors of the number 300,030,000?

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 300,030,000

300,030,000
Factor Arrows
2150,015,000
Factor Arrows
275,007,500
Factor Arrows
237,503,750
Factor Arrows
218,751,875
Factor Arrows
36,250,625
Factor Arrows
51,250,125
Factor Arrows
5250,025
Factor Arrows
550,005
Factor Arrows
510,001
Factor Arrows
73137

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, 5, 73, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 5 x 73 x 137 = 300,030,000

This can also be written as 24 x 31 x 54 x 731 x 1371 = 300,030,000

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


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