5,121 in words
5,121
five thousand one hundred twenty-one
5,121 is written five thousand one hundred twenty-one.
Ways to write it
- As an ordinal
- five thousand one hundred twenty-first
- Expanded form
- 5,000 + 100 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 5 | 5,000 |
| hundreds | 1 | 100 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 569, 1,707 and 5,121 (6 factors)
- First 10 multiples
- 5,121, 10,242, 15,363, 20,484, 25,605, 30,726, 35,847, 40,968, 46,089, 51,210
- Square
- 5,121 × 5,121 = 26,224,641
- Square root
- ≈ 71.56
- Sum of the digits
- 5 + 1 + 2 + 1 = 9
- Rounded to the nearest 10
- 5,120
- Rounded to the nearest 100
- 5,100
- Rounded to the nearest 1000
- 5,000
- Number before
- 5,120
- Number after
- 5,122
- In binary
1010000000001
Quick check
What number comes just after 5,121?
Show the answer
5,122
Is 5,121 even or odd?
Show the answer
Odd
What is 5,121 + 10?
Show the answer
5,131
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 5,121 in words?
5,121 is written "five thousand one hundred twenty-one".
Is 5,121 a prime number?
No. 5,121 is a composite number, because it has more than two factors.
What are the factors of 5,121?
The factors of 5,121 are 1, 3, 9, 569, 1,707 and 5,121.