package main import (     "fmt"     "math" ) func main() {     var i, j, n int     var a [101]int     for i = 1; i <= 100; i++ {         a[i] = i     }     a[1] = 0     for i = 2; i < int(math.Sqrt(100)); i++ {         for j = i + 1; j <= 100; j++ {             if (a[i] != 0) && (a[j] != 0) {                 if a[j]%a[i] == 0 {                     a[j] = 0                 }             }         }     }     fmt.Println()     for i, n = 1, 0; i <= 100; i++ {         if a[i] != 0 {             fmt.Print(a[i], "\t")             n++         }         if n == 10 {             fmt.Println()             n = 0         }     } }