3,720 in words
3,720
three thousand seven hundred and twenty
3,720 is written three thousand seven hundred and twenty.
Ways to write it
- As an ordinal
- three thousand seven hundred and twentieth
- Roman numeral
- MMMDCCXX
- Expanded form
- 3,000 + 700 + 20
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 3 | 3,000 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1,240, 1,860 and 3,720 (32 factors)
- First 10 multiples
- 3,720, 7,440, 11,160, 14,880, 18,600, 22,320, 26,040, 29,760, 33,480, 37,200
- Square
- 3,720 × 3,720 = 13,838,400
- Square root
- ≈ 60.99
- Sum of the digits
- 3 + 7 + 2 + 0 = 12
- Rounded to the nearest 10
- 3,720
- Rounded to the nearest 100
- 3,700
- Rounded to the nearest 1000
- 4,000
- Number before
- 3,719
- Number after
- 3,721
- In binary
111010001000
Quick check
What number comes just after 3,720?
Show the answer
3,721
Is 3,720 even or odd?
Show the answer
Even
What is 3,720 + 10?
Show the answer
3,730
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 3,720 in words?
3,720 is written "three thousand seven hundred and twenty".
Is 3,720 a prime number?
No. 3,720 is a composite number, because it has more than two factors.
What are the factors of 3,720?
The factors of 3,720 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1,240, 1,860 and 3,720.
How do you write 3,720 in Roman numerals?
3,720 in Roman numerals is MMMDCCXX.