Find out the next term in the series 7, 11, 13, 17, 19, ...

Key insight: The series lists consecutive prime numbers.

• 7 — prime

• 11 — prime

• 13 — prime

• 17 — prime

• 19 — prime

• Next prime after 19 is 23.

• 21 is composite (3 × 7), so it cannot be the next term.

• 27 is composite (3 × 9 = 3 × 3 × 3), so it is not the next term.

• Therefore, the next term of the series is 23.