Prove-that-for-all-a-2-divisible-by-b-a-is-also-divisible-by-b-for-all-a-b-N-

Question Number 181039 by depressiveshrek last updated on 20/Nov/22

P r o v e t h a t f o r a l l a^{2} d i v i s i b l e b y b,

a i s a l s o d i v i s i b l e b y b

f o r a l l a, b \in N

Commented by mr W last updated on 20/Nov/22

{i t}^{'} s n o t t r u e!

e x a m p l e :

4^{2} i s d i v i s i b l e b y 8 .

b u t 4 i s n o t d i v i s i b l e b y 8 .

Commented by depressiveshrek last updated on 20/Nov/22

w h a t i f a > b

Commented by Frix last updated on 20/Nov/22

what about a = 21 \land b = 9

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