The Major System is a code between digits and consonant sounds. Every digit from 0 to 9 has its own sound. Vowels have no value, so you can put them anywhere to turn the consonants into a real word. The number becomes a picture, and pictures are what memory holds best.
The code
| Digit | Sounds | A way to remember it |
|---|---|---|
| 0 | s, z, soft c | z is for zero |
| 1 | t, d | t has one downstroke |
| 2 | n | n has two downstrokes |
| 3 | m | m has three |
| 4 | r | the last sound of "four" |
| 5 | l | L is 50 in Roman numerals |
| 6 | j, sh, ch, soft g | a J reversed looks like a 6 |
| 7 | k, hard c, hard g | a K can be drawn from two 7s |
| 8 | f, v | a handwritten f has two loops, like an 8 |
| 9 | p, b | a P reversed looks like a 9 |
Vowels and the letters w, h and y carry no value. Two rules matter:
- It is about sound, not spelling. "Knee" is 2 - the k is silent. "Phone" is 82, because ph sounds like f.
- A doubled letter is one sound. "Butter" is b-t-r, which is 914.
The system has roots in the seventeenth century and took its modern shape in the nineteenth. It has been refined by so many people since that there is no single official word list - only the code.
Numbers into words
A few examples show how it works:
- 46 - r, ch - roach
- 21 - n, t - net or nut
- 85 - f, l - file or fall
- 93 - p, m - puma, not palm, whose l would add a 5
- 07 - s, k - sock
The palm trap is the most common beginner mistake: every consonant sound you pronounce counts, so the word must contain exactly the right sounds and no extra ones.
Learn 00 to 99 once
Working out a word on the spot is slow. The real power comes from choosing one fixed word for every number from 00 to 99 and learning the list until each one is instant. Then any long number splits into pairs, and each pair is already a picture.
Choose concrete, visual words - things you can hold, animals, people. Roach is better than rich. Learn them ten at a time, and test yourself in random order, not 00 to 09 in sequence.
PINs, dates and phone numbers
- A PIN of four digits is two words. 4621 is a roach in a net. Picture it on the cash machine or the door keypad you need it for.
- A date like 1815 becomes two words, or one longer word if you find one. Link the image to the event.
- A phone number is a short walk: one pair per stop in a memory palace, or one image per pair in a quick story.
For very long numbers - hundreds of digits, the kind memory athletes compete on - the Major System is often extended into a PAO system, which packs six digits into a single image.
Practising it
The fastest way to make the code automatic is short, frequent sessions: a handful of numbers turned into words and placed along a route, then recalled. In Memory Palace for Apple TV, Major System sessions show each number with its word and the consonants behind it - 46, R-CH, roach - at a stop in one of the palaces, and the app includes a complete 00-99 list to learn from.