308 in words
308
three hundred and eight
308 is written three hundred and eight.
Ways to write it
- As an ordinal
- three hundred and eighth
- Roman numeral
- CCCVIII
- Expanded form
- 300 + 8
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 3 | 300 |
| tens | 0 | 0 |
| ones | 8 | 8 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154 and 308 (12 factors)
- First 10 multiples
- 308, 616, 924, 1,232, 1,540, 1,848, 2,156, 2,464, 2,772, 3,080
- Square
- 308 × 308 = 94,864
- Square root
- ≈ 17.55
- Sum of the digits
- 3 + 0 + 8 = 11
- Rounded to the nearest 10
- 310
- Rounded to the nearest 100
- 300
- Number before
- 307
- Number after
- 309
- In binary
100110100
Quick check
What number comes just after 308?
Show the answer
309
Is 308 even or odd?
Show the answer
Even
What is 308 + 10?
Show the answer
318
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 308 in words?
308 is written "three hundred and eight".
Is 308 a prime number?
No. 308 is a composite number, because it has more than two factors.
What are the factors of 308?
The factors of 308 are 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154 and 308.
How do you write 308 in Roman numerals?
308 in Roman numerals is CCCVIII.