MathQuarryCalculators

Primes / Is 289 prime?

Is 289 a Prime Number?

No289 = 17^2

289 is NOT prime: 17 × 17 = 289. That makes 17 a genuine divisor of 289 beyond 1 and 289 itself. Fully broken down, 289 = 17^2, for 3 divisors total. 289 sits between primes 283 and 293, 6 below and 4 above. 289 shares no factor with 2-12; 289's divisors start beyond that range. 289 is odd, digit sum 19 for 289, digital root 1 for 289. 289 has 3 primes within 10 of 289.

Factors
1, 17, 289
Number of factors
3
Prime?
No
Prime factorization
17^2
Even or odd
Odd
Square
83521
Cube
24137569
Binary
100100001
Hexadecimal
121
Roman numeral
CCLXXXIX
Perfect square?
Yes
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 289 →Factors of 289 →