1,998 in words
1,998
one thousand nine hundred and ninety-eight
1,998 is written one thousand nine hundred and ninety-eight.
Ways to write it
- As an ordinal
- one thousand nine hundred and ninety-eighth
- Roman numeral
- MCMXCVIII
- Expanded form
- 1,000 + 900 + 90 + 8
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 1 | 1,000 |
| hundreds | 9 | 900 |
| tens | 9 | 90 |
| ones | 8 | 8 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999 and 1,998 (16 factors)
- First 10 multiples
- 1,998, 3,996, 5,994, 7,992, 9,990, 11,988, 13,986, 15,984, 17,982, 19,980
- Square
- 1,998 × 1,998 = 3,992,004
- Square root
- ≈ 44.70
- Sum of the digits
- 1 + 9 + 9 + 8 = 27
- Rounded to the nearest 10
- 2,000
- Rounded to the nearest 100
- 2,000
- Rounded to the nearest 1000
- 2,000
- Number before
- 1,997
- Number after
- 1,999
- In binary
11111001110
Quick check
What number comes just after 1,998?
Show the answer
1,999
Is 1,998 even or odd?
Show the answer
Even
What is 1,998 + 10?
Show the answer
2,008
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 1,998 in words?
1,998 is written "one thousand nine hundred and ninety-eight".
Is 1,998 a prime number?
No. 1,998 is a composite number, because it has more than two factors.
What are the factors of 1,998?
The factors of 1,998 are 1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999 and 1,998.
How do you write 1,998 in Roman numerals?
1,998 in Roman numerals is MCMXCVIII.