What should come in place of the question mark '?' in the following number series?
Calculation:
The series follows the following pattern:
⇒ 79 + 29 = 108
⇒ 108 + 31 = 139
⇒ 139 + 37 = 176
⇒ 176 + 41 = 217
⇒ 217 + 43 = 260
∴ The value of ? is 260
Logic: Addition of Prime numbers
Additional Information