1 3 9 14 98 ? Find the missing number

Ans: 109 the pattern is +, x, +, x.... of prime numbers 2,3,5,7,11,13,17.... 1 + 2 = 3 3 x 3 = 9 9 + 5 = 14 14 x 7 = 98 98 + 11 = 109