Q: What are the prime factors of the number 424,114,432?

 A: 2, 7, 311, 761

Why are those the prime factors of the number 424,114,432?

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 424,114,432

424,114,432
Factor Arrows
2212,057,216
Factor Arrows
2106,028,608
Factor Arrows
253,014,304
Factor Arrows
226,507,152
Factor Arrows
213,253,576
Factor Arrows
26,626,788
Factor Arrows
23,313,394
Factor Arrows
21,656,697
Factor Arrows
7236,671
Factor Arrows
311761

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, 7, 311, 761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 311 x 761 = 424,114,432

This can also be written as 28 x 71 x 3111 x 7611 = 424,114,432

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


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