Fermat number - Wikipedia
https://en.wikipedia.org/wiki/Fermat_numberIn mathematics, a Fermat number, named after Pierre de Fermat, who first studied them, is a positive integer of the form where n is a non-negative integer. The first few Fermat numbers are: 3, 5, 17, 257, 65537, 4294967297, 18446744073709551617, ... (sequence A000215 in the OEIS).If 2 + 1 is primeand k > 0, then k must be a power of 2, so 2 + 1 is a Fermat number; such primes …
Online calculator: Fermat primality test
planetcalc.com › 8973Similar calculators. • Fermat primality test. • Miller–Rabin primality test. • Modular arithmetic. • Prime numbers. Sieve of Eratosthenes. • Modular exponentiation. • Math section ( 264 calculators ) Fermat Math modular Numbers theory Primality test Prime numbers.
Fermat Number -- from Wolfram MathWorld
https://mathworld.wolfram.com/FermatNumber.html17.12.2021 · The number of factors for Fermat numbers for , 1, 2, ... are 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 4, 5, ... (OEIS A046052 ). Written out explicitly, the complete factorizations are (12) (13) (14) (15) (16) (17) (18) (OEIS A050922 ). Here, the final large prime is not explicitly given since it can be computed by dividing by the other given factors.
Online calculator: Fermat primality test
https://planetcalc.com/8983The calculator tests an input number by a primality test based on Fermat's little theorem. Using this calculator, you can find if an input number is Fermat pseudoprime. The calculator uses the Fermat primality test, based on Fermat's little theorem. If n is a prime number, and a is not divisible by n, then : . Fermat primality test Integer number
Online calculator: Fermat primality test
planetcalc.com › 8983The calculator tests an input number by a primality test based on Fermat's little theorem. Using this calculator, you can find if an input number is Fermat pseudoprime. The calculator uses the Fermat primality test, based on Fermat's little theorem. If n is a prime number, and a is not divisible by n, then : .
Fermat Number in Java - Javatpoint
https://www.javatpoint.com/fermat-number-in-javaSteps to Find Fermat Number Read or initialize an integer n. Calculate 2 n by using the Math.pow () method and store the result in a variable (p). Now, calculate 2 p and store the result in a variable (res). Add 1 in the variable (res) store the result in a variable (f). It is a Fermat number. Let's implement the above steps in a Java program.
Fermat Number -- from Wolfram MathWorld
mathworld.wolfram.com › FermatNumberDec 17, 2021 · Fermat Number. There are two definitions of the Fermat number. The less common is a number of the form obtained by setting in a Fermat polynomial, the first few of which are 3, 5, 9, 17, 33, ... (OEIS A000051 ). The much more commonly encountered Fermat numbers are a special case, given by the binomial number of the form .