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(2^64) – 1, is it divisible by 5? Please give the complete solution with explanation.

Rounak Roy , 6 Years ago
Grade 10
anser 1 Answers
P K Pandey

Last Activity: 6 Years ago

(2^64) can be written as (2^4)^16 and the outcome will be a number having the units digit as 6.
 
Subtracting one from it will give 5 in the units digit and any nuumber having 5 in units place is divisible by 5.
 
Hence the number will be divisible by 5.

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