1327 is divisible by 3.
True
False
When we add the digits in 1327 , we get 1 + 3 + 2 + 7 = 13 which is not a multiple of 3 , Hence 1327 is not divisible by 3.
If P(k) is the statement 23k - 1 is divisible by 7, then P(k + 1) is
Show that:
(i) 133−53 is divisible by 8.
(ii) 353+273 is divisible by 62.