Q: What are the prime factors of the number 243,124,338?

 A: 2, 3, 1543, 26261

Why are those the prime factors of the number 243,124,338?

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 243,124,338

243,124,338
Factor Arrows
2121,562,169
Factor Arrows
340,520,723
Factor Arrows
1,54326,261

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, 1543, 26261

We can check our work by multiplying all of the prime factors together: 2 x 3 x 1,543 x 26,261 = 243,124,338

This can also be written as 21 x 31 x 1,5431 x 26,2611 = 243,124,338

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


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