A, B = map(int, input().split())

def GCD(a, b):
    while a >= 1 and b >= 1:
        if a >= b:
            a = a % b
        else:
            b = b % a
    
    if a >= 1:
        return a
    return b

g = GCD(A, B)
A2, B2 = A // g, B // g
ans = g * GCD(A2 + B2, g)

print(ans)