100,421 in words
100,421
one hundred thousand four hundred and twenty-one
100,421 is written one hundred thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- one hundred thousand four hundred and twenty-first
- Expanded form
- 100,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 0 | 0 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 137, 733 and 100,421 (4 factors)
- First 10 multiples
- 100,421, 200,842, 301,263, 401,684, 502,105, 602,526, 702,947, 803,368, 903,789, 1,004,210
- Square
- 100,421 × 100,421 = 10,084,377,241
- Square root
- ≈ 316.89
- Sum of the digits
- 1 + 0 + 0 + 4 + 2 + 1 = 8
- Rounded to the nearest 10
- 100,420
- Rounded to the nearest 100
- 100,400
- Rounded to the nearest 1000
- 100,000
- Number before
- 100,420
- Number after
- 100,422
- In binary
11000100001000101
Quick check
What number comes just after 100,421?
Show the answer
100,422
Is 100,421 even or odd?
Show the answer
Odd
What is 100,421 + 10?
Show the answer
100,431
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 100,421 in words?
100,421 is written "one hundred thousand four hundred and twenty-one".
Is 100,421 a prime number?
No. 100,421 is a composite number, because it has more than two factors.
What are the factors of 100,421?
The factors of 100,421 are 1, 137, 733 and 100,421.