Example 2: What is the remainder if 7^25 is divided by 4?
Added by Laurie M.
Step 1
We can do this by listing out the first few powers of 7 and their remainders when divided by 4: 7^1 = 7, remainder 3 7^2 = 49, remainder 1 7^3 = 343, remainder 3 7^4 = 2401, remainder 1 7^5 = 16807, remainder 3 7^6 = 117649, remainder 1 ... We can see that the Show more…
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