Multiple choice What will come in place of question mark? 1, 2, 6, 30, 210, ? 2310 1470 1890 1050 630 Reveal answer Fill a bubble to check yourself A Correct answer Explanation As it is clear from the series, every number in the series is multiplied by a prime number like 2, 3, 7.... 1 * 2 = 2 2 * 3 = 6 6 * 5 = 30 30 * 7 = 210 Similarly, 210 * 11 = 2310 (11 being the next prime number after 7)