3, 23, 17, 5, 7, 67, 39, X.

The above line represents a finite sequence of 8 integers.

7 are spelled out, the last one is left to be added by you.


If asked to continue the sequence, what options do you suggest
for the next 3 members?

There are several valid solutions.

(In reply to re(3): a possible one READ B4 SOLVING by Ady TZIDON)

One thing is that when the sequence arrive at 144 (11*13+1) the highest divisor is, for the first time, not a prime number. So it's necessary to decide if the sequence is to be continued by the highest divisor or by the highest prime. 

Posted by armando on 2018-03-16 10:45:10