Q: What are the prime factors of the number 243,040,440?

 A: 2, 3, 5, 571, 3547

Why are those the prime factors of the number 243,040,440?

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 243,040,440

243,040,440
Factor Arrows
2121,520,220
Factor Arrows
260,760,110
Factor Arrows
230,380,055
Factor Arrows
310,126,685
Factor Arrows
52,025,337
Factor Arrows
5713,547

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, 571, 3547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 571 x 3,547 = 243,040,440

This can also be written as 23 x 31 x 51 x 5711 x 3,5471 = 243,040,440

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


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