# Math Help - Number theory (Primes)

1. ## Number theory (Primes)

*Determine whether the following assertions are true or false. if true, prove the result, and if false, give a counter example

3. If b/(a^2-1) then b/(a^4-1).

2. $a^4-1=(a^2-1)(a^2+1)$

3. ## pls can u elaborate it

bruno can u pls elaborate it. i don't get it..is it false or true? pls

4. If $m|a$, does $m|ab$ for every $b$? What does " $m|a$" mean?