import sys
input = sys.stdin.readline

from fractions import Fraction
eps=0.00000000001

A,B=input().split()

A=Fraction(A)
B=Fraction(B)

if B>5:
    B-=int(B)-1
x=A**B

if abs(round(x)-x)<eps:
    print("Yes")
else:
    print("No")