26. The addends that are also prime numbers are:
a) 23 and 3 ⇒ 23 + 3 = 26
b) 13 and 13 ⇒ 13 + 13 = 26
c) 19 and 7 ⇒ 19 + 7 = 26
48 - the addends that are also prime numbers are:
a) 41 and 7 ⇒ 41 + 7 = 48
b) 37 and 11 ⇒ 37 + 11 = 48
c) 31 + 17 ⇒ 31 + 17 = 48
d) 29 and 19 ⇒ 29 + 19 = 48