(5^7 + 7^5) . (6^8 + 8^6) .(2^4 - 4^2)(7^5 + 7^9) . (5^4 +5^6) . (3^3 . 3 - 9^2

(5^7 + 7^5) . (6^8 + 8^6) . (2^4 - 4^2)

(7^5 + 7^9) . (5^4 +5^6) . (3^3 . 3 - 9^2