Q: What are the prime factors of the number 424,352,340?

 A: 2, 3, 5, 191, 12343

Why are those the prime factors of the number 424,352,340?

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 424,352,340

424,352,340
Factor Arrows
2212,176,170
Factor Arrows
2106,088,085
Factor Arrows
335,362,695
Factor Arrows
311,787,565
Factor Arrows
52,357,513
Factor Arrows
19112,343

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, 191, 12343

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 191 x 12,343 = 424,352,340

This can also be written as 22 x 32 x 51 x 1911 x 12,3431 = 424,352,340

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


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