801 in words
801
eight hundred one
801 is written eight hundred one.
Ways to write it
- As an ordinal
- eight hundred first
- Roman numeral
- DCCCI
- Expanded form
- 800 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 8 | 800 |
| tens | 0 | 0 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 89, 267 and 801 (6 factors)
- First 10 multiples
- 801, 1,602, 2,403, 3,204, 4,005, 4,806, 5,607, 6,408, 7,209, 8,010
- Square
- 801 × 801 = 641,601
- Square root
- ≈ 28.30
- Sum of the digits
- 8 + 0 + 1 = 9
- Rounded to the nearest 10
- 800
- Rounded to the nearest 100
- 800
- Number before
- 800
- Number after
- 802
- In binary
1100100001
Quick check
What number comes just after 801?
Show the answer
802
Is 801 even or odd?
Show the answer
Odd
What is 801 + 10?
Show the answer
811
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 801 in words?
801 is written "eight hundred one".
Is 801 a prime number?
No. 801 is a composite number, because it has more than two factors.
What are the factors of 801?
The factors of 801 are 1, 3, 9, 89, 267 and 801.
How do you write 801 in Roman numerals?
801 in Roman numerals is DCCCI.