please help me asap i will give brainiest and all my points
Prove the divisibility of the following numbers:
a) 16^5+215 by 33
b)51^7−51^6 by 25
c)5^5−5^4+5^3 by 7
d)7^6+7^5−7^4 by 11
e)5^23−5^21 by 24