800 in words
800
eight hundred
800 is written eight hundred.
Ways to write it
- As an ordinal
- eight hundredth
- Roman numeral
- DCCC
- Expanded form
- 800
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 8 | 800 |
| tens | 0 | 0 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400 and 800 (18 factors)
- First 10 multiples
- 800, 1,600, 2,400, 3,200, 4,000, 4,800, 5,600, 6,400, 7,200, 8,000
- Square
- 800 × 800 = 640,000
- Square root
- ≈ 28.28
- Sum of the digits
- 8 + 0 + 0 = 8
- Rounded to the nearest 10
- 800
- Rounded to the nearest 100
- 800
- Number before
- 799
- Number after
- 801
- In binary
1100100000
Quick check
What number comes just after 800?
Show the answer
801
Is 800 even or odd?
Show the answer
Even
What is 800 + 10?
Show the answer
810
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 800 in words?
800 is written "eight hundred".
Is 800 a prime number?
No. 800 is a composite number, because it has more than two factors.
What are the factors of 800?
The factors of 800 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400 and 800.
How do you write 800 in Roman numerals?
800 in Roman numerals is DCCC.