Problem 1533
A palindromic number is one that reads the same forward and backward like 242. How many palindromic primes are there between 100 and 1000?
Login to Answer
Sharpen your math skills with a new problem every Tuesday to Friday. These daily challenges are perfect for those who enjoy quick, engaging puzzles.
A palindromic number is one that reads the same forward and backward like 242. How many palindromic primes are there between 100 and 1000?
The first 10 to correctly answer this question are shown below.
The 10 top-ranked leaderboards for this question are shown below.