Numbers are (23 – 1), (33 – 1), (43 – 1), (53 – 1), (63 – 1), (73 – 1) etc.
So, the next number is (83 – 1) = (512 – 1) = 511.
4, -8, 16, -32, 64, ?
825 15ff4633da35698574e567c6aExplanation:
Each number is the proceeding number multiplied by -2.
So, the required number is -128.
Find the missing number?
823 05f60a28ba07b2366c8c7f8063, 6, 5, 20, 7, 42, 9, (…)
795 05ff70173c24e1471a7f3bcb74, 10, 40, 190, 940, ? , 23440
789 15ff6f346d9d7f36ecf2c3211