Number memory
Memorize the number before it disappears. One more digit every level.
Press start
–Digits
–Your best
Frequently asked questions
How many digits is a good score?
The classic finding is 7 plus or minus 2: most people top out between 5 and 9 digits. Double digits is strong, and scores above 12 usually involve chunking strategies rather than raw memory.
What is chunking?
Grouping digits into larger units: 149217761066 is hopeless as twelve digits but easy as 1492, 1776, 1066. Working memory holds about seven chunks, so bigger chunks mean more digits.
How long is the number shown?
Display time grows with length: roughly one second per digit plus a small buffer, matching the pace of standard digit-span testing.