1561
Number 1561 properties
- 1561 is an odd number.
Number 1561 - properties and curiosities
1561 (number)
Prime factorization
Prime factorization of 1561: 7 × 223.
Divisors
Divisor count: 4
1, 7, 223, 1561
Factors of 1561 are: 1, 7, 223, 1561.
Representations
In octal, 1561 is represented as 3031.
In binary, 1561 is represented as 11000011001.
In hex, 1561 is represented as 619.
Roman numeral: MDLXI
Curiosities
- 1561 has unique arithmetic behavior worth exploring through its factors and representations.
Related numbers
Nearby primes: 1549, 1553, 1559, 1567, 1571, 1579
Quick answers
Is 1561 prime?
No, 1561 is not prime.
What are the factors of 1561?
1, 7, 223, 1561
What is 1561 in binary?
11000011001