Problem 57869. Identify de Polignac numbers
The numbers 125 and 329 can be written as the sum of a prime and a power of 2. For example, 
, and 
. The numbers 127 and 331, which are examples of de Polignac numbers, cannot be written in this way.
, and . The numbers 127 and 331, which are examples of de Polignac numbers, cannot be written in this way.Write a function that determines whether an odd number is a de Polignac number.
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Prime Numbers III
- 19 Problems
- 4 Finishers
- List the Moran numbers
- List the cuban primes
- Compute the largest number whose prime factors sum to n
- List the Beatriz numbers
- List the Euclid numbers
- List odd twin composites
- List the semiprimes
- Solve an equation involving primes and fractions
- List the two-bit primes
- List numbers such that every sum of consecutive positive integers ending in those numbers is composite
- Identify de Polignac numbers
- List the Fermi-Dirac primes
- Factor a number into Fermi-Dirac primes
- Compute the Sisyphus sequence
- Compute the bubble popper fidget spinner sequence
- Determine whether a number is a Zeisel number
- Express numbers as the sum of a prime, a square, and a cube
- Determine whether a number is a Gaussian prime
- List primes of the form xy+z
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