Q: What are the prime factors of the number 424,784,378?

 A: 2, 23, 2903, 3181

Why are those the prime factors of the number 424,784,378?

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 424,784,378

424,784,378
Factor Arrows
2212,392,189
Factor Arrows
239,234,443
Factor Arrows
2,9033,181

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, 23, 2903, 3181

We can check our work by multiplying all of the prime factors together: 2 x 23 x 2,903 x 3,181 = 424,784,378

This can also be written as 21 x 231 x 2,9031 x 3,1811 = 424,784,378

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


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