5,721 in words
5,721
five thousand seven hundred and twenty-one
5,721 is written five thousand seven hundred and twenty-one.
Ways to write it
- As an ordinal
- five thousand seven hundred and twenty-first
- Expanded form
- 5,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 5 | 5,000 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 1,907 and 5,721 (4 factors)
- First 10 multiples
- 5,721, 11,442, 17,163, 22,884, 28,605, 34,326, 40,047, 45,768, 51,489, 57,210
- Square
- 5,721 × 5,721 = 3,27,29,841
- Square root
- ≈ 75.64
- Sum of the digits
- 5 + 7 + 2 + 1 = 15
- Rounded to the nearest 10
- 5,720
- Rounded to the nearest 100
- 5,700
- Rounded to the nearest 1000
- 6,000
- Number before
- 5,720
- Number after
- 5,722
- In binary
1011001011001
Quick check
What number comes just after 5,721?
Show the answer
5,722
Is 5,721 even or odd?
Show the answer
Odd
What is 5,721 + 10?
Show the answer
5,731
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 5,721 in words?
5,721 is written "five thousand seven hundred and twenty-one".
Is 5,721 a prime number?
No. 5,721 is a composite number, because it has more than two factors.
What are the factors of 5,721?
The factors of 5,721 are 1, 3, 1,907 and 5,721.