Question

13,15,17,17,19,19,23,21 find next number in these series​

Answer 1

Answer:

11, 13, 17, 19, 23, 29, 31, 37, 41, (....) Explanation: Numbers are all primes. The next prime is 43.

Answer 2

Answer:

13,15,17,17,19,19,23,21,23,23

Step-by-step explanation:

After 21 the next number will be 23.

Hope this answer helps you!