def readint():
    return map(int, input().split())


def readlist():
    return list(readint())


n, x = readint()
a = 1
while a**x < n:
    b = n // (a**x)
    if a != b and b > 0 and a**x * b == n:
        print("Yes")
        exit()
    a += 1
print("No")