“Is 91 a first-rate quantity?” is a mathematical query used to find out if the quantity 91 is prime. A first-rate quantity is a optimistic integer larger than 1 that has no optimistic divisors apart from 1 and itself.
The idea of prime numbers is essential in lots of mathematical and cryptographic functions. Figuring out the primality of huge numbers is crucial in public-key cryptosystems, which safe on-line transactions and communications.