# The prime factors of 13195 are 5, 7, 13 and 29.

# What is the largest prime factor of the number 600851475143 ?

N = 600851475143
p = 2
print(N, "=", end =" ")

while N >= p*p:
    if N % p == 0:
        print(p, "*", end =" ")
        N = N / p
    else:
        p = p+1

print(N)



