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 1466

Posted: December 3, 2025

87 % of users got this correct

In the United States, the U. S. Postal Service uses Zip Codes (postal codes) to route mail to various regions on the country.  Zip codes are five-digit numbers that can begin with zero.  How many U. S. zip codes are possible such that the product of the digits is odd?

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