It is increasing by 4 and the nth term is 4n+1
13 + 26 + 34 + 21 + 38 + 42 = 174/6 = 29
29
Arithmetic
25
nth term = 5 +8n
It is increasing by 4 and the nth term is 4n+1
7917
13 + 26 + 34 + 21 + 38 + 42 = 174/6 = 29
It is: 21 because it has more than two factors
PRIME
35
2n +29
21 as all other are prime no. except 21 which is a multiple of 3 and 7
29
Arithmetic
25