679 in words
679
six hundred and seventy-nine
679 is written six hundred and seventy-nine.
Ways to write it
- As an ordinal
- six hundred and seventy-ninth
- Roman numeral
- DCLXXIX
- Expanded form
- 600 + 70 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 6 | 600 |
| tens | 7 | 70 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 7, 97 and 679 (4 factors)
- First 10 multiples
- 679, 1,358, 2,037, 2,716, 3,395, 4,074, 4,753, 5,432, 6,111, 6,790
- Square
- 679 × 679 = 461,041
- Square root
- ≈ 26.06
- Sum of the digits
- 6 + 7 + 9 = 22
- Rounded to the nearest 10
- 680
- Rounded to the nearest 100
- 700
- Number before
- 678
- Number after
- 680
- In binary
1010100111
Quick check
What number comes just after 679?
Show the answer
680
Is 679 even or odd?
Show the answer
Odd
What is 679 + 10?
Show the answer
689
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 679 in words?
679 is written "six hundred and seventy-nine".
Is 679 a prime number?
No. 679 is a composite number, because it has more than two factors.
What are the factors of 679?
The factors of 679 are 1, 7, 97 and 679.
How do you write 679 in Roman numerals?
679 in Roman numerals is DCLXXIX.