313 in words
313
three hundred thirteen
313 is written three hundred thirteen.
Ways to write it
- As an ordinal
- three hundred thirteenth
- Roman numeral
- CCCXIII
- Expanded form
- 300 + 10 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 3 | 300 |
| tens | 1 | 10 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 313 (2 factors)
- First 10 multiples
- 313, 626, 939, 1,252, 1,565, 1,878, 2,191, 2,504, 2,817, 3,130
- Square
- 313 × 313 = 97,969
- Square root
- ≈ 17.69
- Sum of the digits
- 3 + 1 + 3 = 7
- Rounded to the nearest 10
- 310
- Rounded to the nearest 100
- 300
- Number before
- 312
- Number after
- 314
- In binary
100111001
Quick check
What number comes just after 313?
Show the answer
314
Is 313 even or odd?
Show the answer
Odd
What is 313 + 10?
Show the answer
323
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 313 in words?
313 is written "three hundred thirteen".
Is 313 a prime number?
Yes. 313 is a prime number: its only factors are 1 and 313.
What are the factors of 313?
The factors of 313 are 1 and 313.
How do you write 313 in Roman numerals?
313 in Roman numerals is CCCXIII.