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import time
print(time.ctime())
m = 5
n = 7
p = 3
y = m
for i in range(2,1000000):
    if i % 100000 == 0: print(time.ctime(),i)
    y *= m
    x = y - 2
    while x % n == 0:
        x /=n
    if x == 1:
        print (i,n)
    x = y - 2
    while x % p == 0:
        x /= p
    if x == 1:
        print (i,p)
print(time.ctime())

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