Number Memory Test: Digit Span Game
This number memory test measures your digit span, the longest number you can hold in short-term memory. A number flashes on the screen for a few seconds, then disappears, and you type it back from memory. Get it right and the next number is one digit longer; get it wrong and the test ends at your score. Most adults remember about 7 digits, give or take 2, a classic finding in psychology often called the magic number seven. Practice with chunking (grouping digits like a phone number, 555-867-5309) and see your best level climb. Your best score and recent results are saved in your browser, and there is a practice mode with three lives.
Number Memory Test
See a number, remember it, type it back. Each level adds a digit. Find your digit span and beat your best.
How to use the Number Memory Test
- Press Start and memorize the number on screen.
- When it disappears, type the number and press Enter.
- Each correct answer adds one digit.
- The test ends on a wrong answer; your level is your digit span.
Features
- Classic digit span test
- Display time grows with the number
- Classic mode or practice mode with 3 lives
- Shows the number you missed
- Best score and history saved
- Works with keyboard or phone keypad
Frequently asked questions
What is a good number memory score?
Most adults reach 7 or 8 digits. Scores of 9 to 11 are very good, and 12 or more usually means you are using chunking or other memory tricks.
What is digit span?
Digit span is the longest list of digits you can repeat back right after seeing or hearing it. It is a common measure of short-term and working memory.
How can I improve my number memory?
Chunk the digits into groups of 3 or 4, say them in your head with a rhythm, link them to dates or numbers you know, and practice a few minutes a day.
How long is the number shown?
About 1 second plus 0.6 seconds per digit, so a 7-digit number shows for about 5 seconds.
Is this an IQ test?
No. It is a fun memory game based on the digit span task. It is not a medical or IQ test.