Remember the number and type it back
Level 1
What was the number?
0
Digit Score
About Number Memory Test
The Number Memory Test challenges your ability to remember increasingly long sequences of digits. This test measures your numerical working memory capacity and short-term memory retention.
How It Works
- Number Appears: A number is displayed on screen for a few seconds
- Memorize It: Study the number and commit it to memory
- Number Disappears: The number is hidden after display time
- Type It Back: Enter the exact number you saw
- Level Up: Each successful round adds one more digit
- Game Over: One mistake ends the test
Memory Tip: Try chunking digits into groups of 3-4 numbers (like phone numbers). For example, remember 7428951 as "742-8951" or "7428-951".
Score Interpretation
Exceptional
10+ digits
Excellent
8-9 digits
Good
6-7 digits
Average
4-5 digits
The Science of Number Memory
This test is based on the digit span task, a classic measure of working memory capacity. Research by psychologist George Miller found that most people can hold 7±2 items in short-term memory, which applies to digit sequences.
7±2
Average digit span (Miller's Law)
Benefits of Number Memory Training
- 🧠 Working Memory: Strengthens short-term memory capacity
- 📱 Phone Numbers: Improves ability to remember numbers in daily life
- 🎓 Learning: Better memory for numerical information
- 🧮 Mental Math: Helps with calculation and number manipulation
- 🎯 Focus: Enhances concentration and attention
- 💼 Professional Skills: Useful for data-heavy work
Memory Techniques
- Chunking: Break numbers into groups (742-891-5 instead of 7428915)
- Pattern Recognition: Look for sequences (123, 777, even/odd patterns)
- Verbalization: Say the number out loud or in your head
- Visual Memory: Create a mental image of how the number looks
- Rhymes/Stories: Create a memorable phrase using the digits
- Major System: Convert numbers to consonants then words
- Practice: Regular training significantly improves capacity
Frequently Asked Questions
❓ What's a good score on this test?
Most people score between 5-8 digits. A score of 7 is average (based on Miller's Law). Scores of 9+ are excellent and indicate strong working memory capacity.
❓ Can I improve my number memory?
Yes! With practice and techniques like chunking, most people can improve by 2-3 digits. Memory athletes can remember 50+ digits using advanced mnemonic systems.
❓ What is chunking?
Chunking is grouping digits into smaller units. For example, remembering "583-429-1" is easier than "5834291" because you're remembering 3 chunks instead of 7 individual digits.
❓ How is this different from a phone number?
Phone numbers are typically pre-chunked (555-1234) and have familiar patterns. This test presents random digits without breaks, making it more challenging for your working memory.
❓ Why do I keep forgetting?
Working memory is limited. When the number exceeds your capacity (usually 5-9 digits), information starts to decay. Using memory techniques like chunking helps extend your capacity.
❓ Does this relate to intelligence?
Working memory capacity correlates with fluid intelligence and cognitive ability. However, this test measures just one aspect of cognition, and scores can be significantly improved with practice.
❓ How do memory champions remember hundreds of digits?
They use the Method of Loci (memory palace) and Major System, converting digits into vivid mental images and placing them along a familiar route. These techniques take practice but are extremely powerful.
❓ Should I write it down?
No, that defeats the purpose! This test measures your memory, not transcription ability. Try to remember it purely mentally for an accurate assessment.
❓ Can I save my results?
Yes! Sign in with your Google account to save your scores and track your improvement over time on your personal dashboard.
❓ What's the world record?
Memory athletes can memorize thousands of digits. The world record for memorizing pi is over 70,000 digits! For this type of rapid recall test, scores of 15-20 digits are exceptional for non-athletes.