Q: What are the prime factors of the number 741,383,040?

 A: 2, 3, 5, 19, 20323

Why are those the prime factors of the number 741,383,040?

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 741,383,040

741,383,040
Factor Arrows
2370,691,520
Factor Arrows
2185,345,760
Factor Arrows
292,672,880
Factor Arrows
246,336,440
Factor Arrows
223,168,220
Factor Arrows
211,584,110
Factor Arrows
25,792,055
Factor Arrows
31,930,685
Factor Arrows
5386,137
Factor Arrows
1920,323

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, 19, 20323

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 3 x 5 x 19 x 20,323 = 741,383,040

This can also be written as 27 x 31 x 51 x 191 x 20,3231 = 741,383,040

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


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