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OpenStudy (anonymous):
Which is a counterexample that disproves the conjecture? If n is a positive integer, then 2^n – 1 is a prime number. A. n = 6 B. n = 5 C. n = 3 D. n = 2
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OpenStudy (anonymous):
did you check the numbers?
OpenStudy (anonymous):
\[2^6-1=63\] which is probably not prime
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