Hmm - i didnt read the thread posted above, but i did it in one way - i hope its not a mistake.
i did 7/4 = 1 with a reminder of 3.
now - if i have a reminder of 3 for every 7 it means i have a reminder of
3*25 (bc i have 25's 7's)...
if i divide again all the reminders - 3*25=75 and ill divide it again in 4
75/4 = 18 with a reminder of 3.
so the reminder of (7^25)/4 should be 3.
i hope i had it correct.
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