Every number has a story

Number 428524

Explore its patterns. Find your next edit.

Edit this number

Sandbox scoreRARE

5,293EP

Top 19.521% · sandbox population rank

195,183 higher · 27 tied · 804,790 lower

The patterns

Matched badges / 2

Bookends

First 2 digits mirror the last 2 digits, excluding full palindromes (e.g. 421324)

+1,800 EP

Two Pair

Two distinct pairs of identical digits

+600 EP

Explore all sandbox badge rules →

Scores use independent sandbox rules at ×1. Top / Bottom percentages include tied scores across all 1,000,000 inputs; they are not official or lock-conditioned odds.

The possibilities

Best single-digit edits

All 54 changes checked. Follow a number to compare.

01428824Digit 4: 5 → 8+57,516EP 02425524Digit 3: 8 → 5+57,422EP 03424524Digit 3: 8 → 4+14,574EP 04428224Digit 4: 5 → 2+14,572EP 05422524Digit 3: 8 → 2+14,151EP

Keep exploring

Full archive

Mathematical landmarks, familiar patterns, and surprising combinations.

524287 524087 594287 524387 777777 420069 123456 314159 000000 999999