Prove the divisibility of the following number: 7^6 +7^5 -7^4 is by 11

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asked Jun 25, 2019 196k views

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Helbaroudy · Answer 1 · 2019-06-30T02:48:40+0000

7^6=117649
7^5=16807
7^4=2401

117649+16807-2401=132055

132055/11=12005
Because the above division problem led to the result of a whole number (or integer), that means that the number given is divisible by 11.

Prove the divisibility of the following number: 7^6 +7^5 -7^4 is by 11

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