Test how many digits you can remember. Measure your short-term memory and compare your score with global benchmarks.
画面に数字が短時間表示されます。消える前に覚え、正確に入力してください。レベルが上がるごとに数字が増え、あなたの記憶能力の限界に挑戦します。
すべてのメモリ次元をテストして、メモリ容量指数を明らかにしましょう。あなたの認知設計図をグローバルベンチマークと比較します。
他のパフォーマンス評価に即座に切り替え
A number memory test measures how many digits you can remember after seeing them briefly. It is a key indicator of your short-term memory and working memory capacity.
In this test, a number will appear on the screen for a short time. Your task is to memorize it and type it back exactly. With each round, the number becomes longer and harder to remember.
Number memory is essential for many real-world tasks:
Essential for holding intermediate steps in your head while calculating.
Crucial for retaining phone numbers, PIN codes, and numerical data.
Helps in holding multiple variables and concepts in working memory simultaneously.
Strongly linked to attention control and cognitive processing ability during critical moments.
For reference, most people can remember around 7 digits (often called the "7±2 rule").
How strong is your number memory? This test measures how many digits you can remember correctly in sequence — a key indicator of your short-term and working memory capacity.
Most people can remember 5–7 digits in sequence without training.
Remembering 8–10 digits places you above average and indicates strong working memory capacity.
Scores of 11+ digits are considered excellent and are often seen in trained individuals or memory competitors.
Human short-term memory is often described by the “7 ± 2 rule”, meaning most people can hold between 5 and 9 items in memory at once.
This benchmark is based on aggregated results from thousands of memory tests across different users and devices. Scores may vary depending on focus, environment, and repetition.
Your performance can vary significantly based on the following factors:
Distractions reduce your ability to encode and retain number sequences, leading to shorter recall spans.
Shorter exposure time limits how effectively your brain can process and store the sequence.
Typing on mobile vs keyboard may slightly affect recall due to differences in speed and cognitive effort.
As sequences grow longer, your brain must rely on chunking strategies to maintain accuracy.
Using patterns, grouping, or rhythm can significantly improve how many digits you can remember.
It measures your short-term memory capacity, specifically your ability to store and recall numerical information.
Most people can remember around 5–7 digits.
This comes from cognitive psychology research suggesting that the average working memory can hold about 7 items (±2).
Not exactly: Number memory measures digits recall, while Sequence memory measures order recall (visual/spatial). Both test working memory but in different ways.
Yes. With techniques like chunking and daily practice, most users can improve their maximum capacity by 2–3 digits.
Mobile users often type slower, get distracted more easily, and have smaller screens.
This test provides a relative benchmark, not a clinical assessment. It is designed for training and cognitive comparison.
Explore more tools to measure and improve your performance across 6 human cognitive dimensions.