Twin primes are primes p1, p2 = p1 + 2 such that both p1 and p2 are prime numbers. Given a positive integer N (>=5) what are the largest twin primes (in order) <= N. For example, if N = 20 then p1 = 17 and p2 = 19.

Solve

Solution Stats

2328 Solutions

989 Solvers

Last Solution submitted on Apr 09, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers989

Sean Kavanagh Yongzhen Mi 夕 Lorenzo

Suggested Problems

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!