3 in words
British English
three
Three becomes third, not threeth. The same thir- turns up in thirteen and thirty.
Quick reference
- In figures
- 3
- British English
- three
- American English
- The same (why they differ)
- Ordinal
- third (3rd)
- Roman numeral
- III
- Place value
- 3 in the ones column
- Expanded form
- 3
- Standard form
- 3 × 10⁰
- Even or odd
- Odd
- Prime factors
- None but itself and one: it is prime
Convert any other number, up to thirty-six digits.