279 in words
279
two hundred and seventy-nine
279 is written two hundred and seventy-nine.
Ways to write it
- As an ordinal
- two hundred and seventy-ninth
- Roman numeral
- CCLXXIX
- Expanded form
- 200 + 70 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 2 | 200 |
| tens | 7 | 70 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 31, 93 and 279 (6 factors)
- First 10 multiples
- 279, 558, 837, 1,116, 1,395, 1,674, 1,953, 2,232, 2,511, 2,790
- Square
- 279 × 279 = 77,841
- Square root
- ≈ 16.70
- Sum of the digits
- 2 + 7 + 9 = 18
- Rounded to the nearest 10
- 280
- Rounded to the nearest 100
- 300
- Number before
- 278
- Number after
- 280
- In binary
100010111
Quick check
What number comes just after 279?
Show the answer
280
Is 279 even or odd?
Show the answer
Odd
What is 279 + 10?
Show the answer
289
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 279 in words?
279 is written "two hundred and seventy-nine".
Is 279 a prime number?
No. 279 is a composite number, because it has more than two factors.
What are the factors of 279?
The factors of 279 are 1, 3, 9, 31, 93 and 279.
How do you write 279 in Roman numerals?
279 in Roman numerals is CCLXXIX.