18
If you mean: 1 2 3 5 8 13 then the next number is 8+13 = 21
Next number will be.. 19.
If you mean: 1 1 2 3 5 8 13 21 then the next number is 13+21 = 34
The next number in the sequence is 18. It's +1, +2, +3, +4, ....
65
The pattern consists of consecutive prime numbers: 2, 3, 5, 7, 11, and 13. The next prime number after 13 is 17. Therefore, the next number in the pattern is 17.
If the last number is 1/3 (it should be), the next number is 5 and 1/3
prime numbers - next number is 13
The next composite number after 38 is 39. It is divisible to 3 and 13 in addition to 1 and 39.
Every next number is increased by 5. The next number in the sequence is 23.
13
Actually the next number in the sequence is 17 A 19 , 23 , 29 , 31 ,.......... Prim number