The series is product of consecutive prime numbers sequentially.

2.3, 3.5, 5.7, 7.11, 11.13, 13.17, 17.19, A, B, C

∴ A = 19.23 = 437

B = 23.29 = 667

C = 29.31 = 899

Ans: 437, 667, 899