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4^61+4^62+4^63+4^64+4^65 is divisible by which number

4^61+4^62+4^63+4^64+4^65 is divisible by which number

Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
 
(461 + 462 + 463 + 464) = 461 x (1 + 4 + 42 + 43) = 461 x 85. = 460 x (4 x 85). = (460 x 340), which is divisible by 10. 

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