Powers of 3
Number Theory
Level
pending
True or false?
As long as n is a positive integer, - 1 will always be a composite number.
True
False
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1 solution
3 n -1 is a n even number for all positive integers n but if n=1, 3 -1 = 2 which is a prime number. 2 is the only even prime. If n is an integer greater than 1, the value would be a composite number.