Q: What are the prime factors of the number 243,401,134?

 A: 2, 19, 23, 278491

Why are those the prime factors of the number 243,401,134?

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 243,401,134

243,401,134
Factor Arrows
2121,700,567
Factor Arrows
196,405,293
Factor Arrows
23278,491

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, 19, 23, 278491

We can check our work by multiplying all of the prime factors together: 2 x 19 x 23 x 278,491 = 243,401,134

This can also be written as 21 x 191 x 231 x 278,4911 = 243,401,134

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


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