Q: What are the prime factors of the number 305,162,424?

 A: 2, 3, 7, 201827

Why are those the prime factors of the number 305,162,424?

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 305,162,424

305,162,424
Factor Arrows
2152,581,212
Factor Arrows
276,290,606
Factor Arrows
238,145,303
Factor Arrows
312,715,101
Factor Arrows
34,238,367
Factor Arrows
31,412,789
Factor Arrows
7201,827

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, 7, 201827

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 7 x 201,827 = 305,162,424

This can also be written as 23 x 33 x 71 x 201,8271 = 305,162,424

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


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