What is 289 square root?

The square root of 289 is 17. This is because 17 multiplied by 17 equals 289. The square root of a number is the value that, when multiplied by itself, gives the original number. In this case, the square root of 289 is 17, as 17 x 17 = 289. The square root of 289 can also be expressed as ±17, as both 17 and -17 squared equal 289.