Can You Solve The ABCDE Math Puzzle?

News: The Curiosity Podcast is here! Subscribe on iTunes, Stitcher, Google Play Music, SoundCloud and RSS.

Just because a problem is easy to explain doesn't mean it'll be easy to solve. So is the case of Scam School's ABCDE math puzzle. Best of luck!

Related: This Math Problem Went Viral In Japan


Here's The Problem

Each letter in this equations represents a unique integer: AB,CDE x 4 = ED,CAB. Basically, this puzzle states that a five-digit number multiplied by four is equal to the same number written backward. Can you figure out the integer that each letter stands for? Scroll down for the answer—but definitely give it a try first.

Related: The Tricky Logic Of The Chain Link Puzzle

Love getting smarter? Sign up to our newsletter and get our best content in your inbox!

ABCDE...FML This Challenge Is Hard

Watch until the end to get the solution to this head-scratcher.

Here's The Answer

In this problem, the number AB,CDE is 21,978. Check out the Scam School video to see exactly how to solve it.

Is there something you're curious about? Email us at editors (at) And follow Curiosity on Facebook, Instagram and Twitter.

Editor's Picks: Some Of Our Favorite Math Brain Teasers

9 - 3 ÷ 1/3 + 1 = ?

This math problem reportedly went viral in Japan.

The 10 Puzzle

This one is known as the "Google brain teaser."

The Guess Their Ages Logic Puzzle

You'll get thrown off at the part about chocolate chip cookies...