71
342
356
11
11
11.
14
That would be -5.
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
The missing number is 26. The number after 29 is 58.
10 (between 7 and 13)
342
356
It is 11 which is also a prime number
11
11
11.
there is not one