@cyruschang1904
2^22 - 22^2 = 2^2 (2^20 - 11^2) = 2^2 (4^4 - 11^2) = 2^2 (4^2 + 11)(4^2 - 11) = 4 (16 + 11)(16 - 11) = 4 (27)(5) = 20 (27) = 540
2^22 - 22^2 = 2^2 (2^20 - 11^2) = 2^2 (4^4 - 11^2) = 2^2 (4^2 + 11)(4^2 - 11) = 4 (16 + 11)(16 - 11) = 4 (27)(5) = 20 (27) = 540
@AnkitKumar-sy7pg