791 in words
791
seven hundred ninety-one
791 is written seven hundred ninety-one.
Ways to write it
- As an ordinal
- seven hundred ninety-first
- Roman numeral
- DCCXCI
- Expanded form
- 700 + 90 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 7 | 700 |
| tens | 9 | 90 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 7, 113 and 791 (4 factors)
- First 10 multiples
- 791, 1,582, 2,373, 3,164, 3,955, 4,746, 5,537, 6,328, 7,119, 7,910
- Square
- 791 × 791 = 625,681
- Square root
- ≈ 28.12
- Sum of the digits
- 7 + 9 + 1 = 17
- Rounded to the nearest 10
- 790
- Rounded to the nearest 100
- 800
- Number before
- 790
- Number after
- 792
- In binary
1100010111
Quick check
What number comes just after 791?
Show the answer
792
Is 791 even or odd?
Show the answer
Odd
What is 791 + 10?
Show the answer
801
Practice 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 791 in words?
791 is written "seven hundred ninety-one".
Is 791 a prime number?
No. 791 is a composite number, because it has more than two factors.
What are the factors of 791?
The factors of 791 are 1, 7, 113 and 791.
How do you write 791 in Roman numerals?
791 in Roman numerals is DCCXCI.