Multiple choice Find the missing number in the series. $1, 11, 99, 693, 3465,?$ $8946$ $11296$ $10395$ $12974$ $10296$ Reveal answer Fill a bubble to check yourself C Correct answer Explanation Find the pattern: 1 × 11 = 11, 11 × 9 = 99, 99 × 7 = 693, 693 × 5 = 3465. The multipliers decrease by 2: 11, 9, 7, 5. Next multiplier is 3. 3465 × 3 = 10395.