MathDB

4

Part of 1960 Poland - Second Round

Problems(1)

7 | 2^{n+2} + 3^{2n+1}

Source: Polish MO Second Round 1960 p4

8/31/2024
Prove that if n n is a non-negative integer, then number 2n+2+32n+1 2^{n+2} + 3^{2n+1} is divisible by 77.
number theorydividesdivisible