1---
2title: Chunk Data into Groups of 5-9
3impact: HIGH
4tags: ux, millers, chunking, memory
5---
6 
7## Chunk Data into Groups of 5-9
8 
9Working memory holds about 7 items. Group and chunk large data sets so they're scannable.
10 
11**Incorrect (raw unformatted data):**
12 
13```tsx
14<span>4532015112830366</span>
15```
16 
17**Correct (chunked for readability):**
18 
19```tsx
20<span>4532 0151 1283 0366</span>
21```
22 
23Reference: Miller, G. A. (1956). The magical number seven, plus or minus two.
24