15
Number 15 properties
- 15 is an odd number.
- 15 is triangular and equals T5.
Number 15 - properties and curiosities
15 (number)
Prime factorization
Prime factorization of 15: 3 × 5.
Divisors
Divisor count: 4
1, 3, 5, 15
Factors of 15 are: 1, 3, 5, 15.
Representations
In octal, 15 is represented as 17.
In binary, 15 is represented as 1111.
In hex, 15 is represented as F.
Roman numeral: XV
Curiosities
- 15 has unique arithmetic behavior worth exploring through its factors and representations.
Related numbers
Quick answers
Is 15 prime?
No, 15 is not prime.
What are the factors of 15?
1, 3, 5, 15
What is 15 in binary?
1111