661
Number 661 properties
- 661 is an odd number.
- 661 is a prime number, which means it is only divisible by 1 and itself.
Number 661 - properties and curiosities
661 (number)
Prime factorization
Prime factorization of 661: 661.
Divisors
Divisor count: 2
1, 661
Factors of 661 are: 1, 661.
Representations
In octal, 661 is represented as 1225.
In binary, 661 is represented as 1010010101.
In hex, 661 is represented as 295.
Roman numeral: DCLXI
Curiosities
- 661 is part of the infinite sequence of prime numbers.
Related numbers
Quick answers
Is 661 prime?
Yes, 661 is prime.
What are the factors of 661?
1, 661
What is 661 in binary?
1010010101