900 in words
900
nine hundred
900 is written nine hundred.
Ways to write it
- As an ordinal
- nine hundredth
- Roman numeral
- CM
- Expanded form
- 900
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 9 | 900 |
| tens | 0 | 0 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450 and 900 (27 factors)
- First 10 multiples
- 900, 1,800, 2,700, 3,600, 4,500, 5,400, 6,300, 7,200, 8,100, 9,000
- Square
- 900 × 900 = 810,000
- Square root
- 30
- Sum of the digits
- 9 + 0 + 0 = 9
- Rounded to the nearest 10
- 900
- Rounded to the nearest 100
- 900
- Number before
- 899
- Number after
- 901
- In binary
1110000100
Quick check
What number comes just after 900?
Show the answer
901
Is 900 even or odd?
Show the answer
Even
What is 900 + 10?
Show the answer
910
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 900 in words?
900 is written "nine hundred".
Is 900 a prime number?
No. 900 is a composite number, because it has more than two factors.
What are the factors of 900?
The factors of 900 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450 and 900.
How do you write 900 in Roman numerals?
900 in Roman numerals is CM.