The math.isqrt() computes the integer square root of a number.
The integer square root of a number is the greatest integer less than or equal to the exact square root of the number. For example, the exact square root of 20 is 4.47213595499958, therefore, the integer square root of 20 is 4.
math.isqrt(x)Where, parameter x is an integer whose square root is to be calculated.
import math
math.isqrt(25)
//5
math.isqrt(20)
//4
math.isqrt(40)
//6
math.isqrt(111)
//10
math.isqrt(500)
//22
math.isqrt(1000)
//31
The argument given to math.isqrt() function should be strictly integer. Otherwise, a TypeError is raised.
import math
math.isqrt(100.5)
