A prime number is a number, other than 1, that is divisible by only itself and 1. Lucille
read that prime numbers are very important in cryptography, so she decided to find a
systematic way of producing prime numbers. After some experimenting, she
conjectured that 2" - 1 is a prime for all whole numbers > 1. Find a counterexample
to this conjecture.
n
When n = 4, 2-1= Select Choice and 15 = Select Choice ✓