package main import . "fmt" func main() { var x,a,y,b int Scan(&x,&a,&y,&b) for i:=2;i*i<=y;i++ { if y%i!=0 { continue } var c,d int for y%i==0 { y/=i c++ } for x%i==0 { x/=i d++ } if a*d1 { var e int for x%y==0 { x/=y e++ } if e*a>=b { Println("Yes") } else { Println("No") } return } Println("Yes") }