Number
970 in Roman numerals
970 is written CMLXX
Type any other number or numeral below to convert it.
Above 3,999? Type the barred part in brackets, e.g. (IV)CC = 4,200.
How CMLXX is built
Roman numerals are written one decimal place at a time, largest first.
- CMhundreds · 9C before M means 1,000 − 100 = 900. This saves writing DCCCC.
- LXXtens · 7L (50) plus XX (20) makes 70.
900 + 70 = 970
The pair CM uses subtraction: a smaller letter before a larger one is taken away from it. Only six pairs work this way: IV, IX, XL, XC, CD and CM. More on subtraction
Mistakes to avoid
- Not LMXX. It looks like a shortcut, but L is never written before a larger letter to subtract. The correct form is CMLXX.
- Not DCCCCLXX (8 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today CMLXX (5 letters) is the standard.
- There's no letter for zero. The zero is simply left out, which is why 970 has 2 parts, not 3.
About the number 970
- 970 is even and can be split into prime factors: 2 × 5 × 97, or in Roman numerals II × V × XCVII.
- CMLXX has 5 letters. 604 of the numbers up to 1,000 have longer numerals.
Counting from 961 to 970
Every number from 961 to 970 starts CMLX (960); only the ending changes.
| Number | Roman numeral |
|---|---|
| 961 | CMLXI |
| 962 | CMLXII |
| 963 | CMLXIII |
| 964 | CMLXIV |
| 965 | CMLXV |
| 966 | CMLXVI |
| 967 | CMLXVII |
| 968 | CMLXVIII |
| 969 | CMLXIX |
| 970 | CMLXX |