Q: What are the prime factors of the number 49,376?

 A: 2, 1543

Why are those the prime factors of the number 49,376?

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 49,376

49,376
Factor Arrows
224,688
Factor Arrows
212,344
Factor Arrows
26,172
Factor Arrows
23,086
Factor Arrows
21,543

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, 1543

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 1,543 = 49,376

This can also be written as 25 x 1,5431 = 49,376

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


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