281
Number 281 properties
- 281 is an odd number.
- 281 is a prime number, which means it is only divisible by 1 and itself.
- 281 is a Sophie Germain prime, which means that 2 x 281 + 1 = 563 is also a prime number.
Number 281 - properties and curiosities
281 (number)
Prime factorization
Prime factorization of 281: 281.
Divisors
Divisor count: 2
1, 281
Factors of 281 are: 1, 281.
Representations
In octal, 281 is represented as 431.
In binary, 281 is represented as 100011001.
In hex, 281 is represented as 119.
Roman numeral: CCLXXXI
Curiosities
- 281 is part of the infinite sequence of prime numbers.
Related numbers
Quick answers
Is 281 prime?
Yes, 281 is prime.
What are the factors of 281?
1, 281
What is 281 in binary?
100011001