Q: What are the prime factors of the number 305,556,624?

 A: 2, 3, 43, 5483

Why are those the prime factors of the number 305,556,624?

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 305,556,624

305,556,624
Factor Arrows
2152,778,312
Factor Arrows
276,389,156
Factor Arrows
238,194,578
Factor Arrows
219,097,289
Factor Arrows
36,365,763
Factor Arrows
32,121,921
Factor Arrows
3707,307
Factor Arrows
3235,769
Factor Arrows
435,483

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, 43, 5483

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 43 x 5,483 = 305,556,624

This can also be written as 24 x 34 x 431 x 5,4831 = 305,556,624

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


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