Find the next number in the series 13, 17, 19, 23, 29, _

The given series appears to be a series of prime numbers.

Prime numbers are numbers that have only two distinct positive divisors: 1 and the number itself. For example, the first six prime numbers are 2, 3, 5, 7, 11, and 13.

Let's look at the series:

• 13 is the 6th prime number.
• 17 is the 7th prime number.
• 19 is the 8th prime number.
• 23 is the 9th prime number.
• 29 is the 10th prime number.

So, we are looking for the 11th prime number, which is 31.

Therefore, the next number in the series 13, 17, 19, 23, 29, _ is 31.