Daily Math Challenge

Sharpen your math skills with a new problem every Tuesday to Friday. These daily challenges are perfect for those who enjoy quick, engaging puzzles.

Problem 1334

Posted: April 17, 2025

70 % of users got this correct

You are given a jar in which each prime number less than 20 is written on separate pieces of paper.  If you then draw two pieces of paper out of the jar at random, what is the probability that the sum of the two numbers on the pieces of paper will be a prime number?

Login to Answer
View Past Problems

Individual Rankings

The first 10 to correctly answer this question are shown below.

View All Individual Rankings

Leaderboard Rankings

The 10 top-ranked leaderboards for this question are shown below.

View All Leaderboard Rankings

Recent attempts