Q: What are the prime factors of the number 324,402,432?

 A: 2, 3, 17, 24847

Why are those the prime factors of the number 324,402,432?

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 324,402,432

324,402,432
Factor Arrows
2162,201,216
Factor Arrows
281,100,608
Factor Arrows
240,550,304
Factor Arrows
220,275,152
Factor Arrows
210,137,576
Factor Arrows
25,068,788
Factor Arrows
22,534,394
Factor Arrows
21,267,197
Factor Arrows
3422,399
Factor Arrows
1724,847

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, 17, 24847

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 3 x 17 x 24,847 = 324,402,432

This can also be written as 28 x 31 x 171 x 24,8471 = 324,402,432

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


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