6
2x
What is the missing number in this logical series? 1, 2, 6, 42, 1806,______???? Its 3263442, you square the number then add the original unsquared number to the squared value, and so forth.
120. The numbers are factorials: 1, 1x2, 1x2x3, etc.
There is nothing missing here. If you are asking what end numbers are are missing in the front is 6 and in the very back is 9.
6
8+6+5--19
The spacing is 6 1+6=7 7+6=13 13+6=19 19+6=25 so the missing number in the sequence is 13
14
-6
2x
64 is missing; the numbers are cubes of 1,2,3,4,5,& 6.
0 is the missing number.
The number progression is n+prime numbers progressively increasing starting from 2. The missing number is 29.
What is the missing number in this logical series? 1, 2, 6, 42, 1806,______???? Its 3263442, you square the number then add the original unsquared number to the squared value, and so forth.
6
A 6 should be placed between the fours.