Q: What are the prime factors of the number 307,420,650?

 A: 2, 3, 5, 227719

Why are those the prime factors of the number 307,420,650?

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 307,420,650

307,420,650
Factor Arrows
2153,710,325
Factor Arrows
351,236,775
Factor Arrows
317,078,925
Factor Arrows
35,692,975
Factor Arrows
51,138,595
Factor Arrows
5227,719

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, 227719

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 5 x 227,719 = 307,420,650

This can also be written as 21 x 33 x 52 x 227,7191 = 307,420,650

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


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