42,100 in words
42,100
forty-two thousand one hundred
42,100 is written forty-two thousand one hundred.
Ways to write it
- As an ordinal
- forty-two thousand one hundredth
- Expanded form
- 40,000 + 2,000 + 100
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 1 | 100 |
| tens | 0 | 0 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 842, 1,684, 2,105, 4,210, 8,420, 10,525, 21,050 and 42,100 (18 factors)
- First 10 multiples
- 42,100, 84,200, 126,300, 168,400, 210,500, 252,600, 294,700, 336,800, 378,900, 421,000
- Square
- 42,100 × 42,100 = 1,772,410,000
- Square root
- ≈ 205.18
- Sum of the digits
- 4 + 2 + 1 + 0 + 0 = 7
- Rounded to the nearest 10
- 42,100
- Rounded to the nearest 100
- 42,100
- Rounded to the nearest 1000
- 42,000
- Number before
- 42,099
- Number after
- 42,101
- In binary
1010010001110100
Quick check
What number comes just after 42,100?
Show the answer
42,101
Is 42,100 even or odd?
Show the answer
Even
What is 42,100 + 10?
Show the answer
42,110
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 42,100 in words?
42,100 is written "forty-two thousand one hundred".
Is 42,100 a prime number?
No. 42,100 is a composite number, because it has more than two factors.
What are the factors of 42,100?
The factors of 42,100 are 1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 842, 1,684, 2,105, 4,210, 8,420, 10,525, 21,050 and 42,100.