(a) Can two consecutive numbers $n$ and $n-1$ both be divisible by $3$?
(b) Determine the smallest integer $n > 1$ such that $n^2(n-1)$ is divisible by $1971$. Note:
$1971 = 3^3 \times 73$.
ahmedittihad wrote:Apply crt to get $n=585$.
jayon_2 wrote:ahmedittihad wrote:Apply crt to get $n=585$.
what is crt?
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