Question

What is the next number in this series ?

4, 6, 12, 18, 30, 42, 60, ?
A) 71
B) 72
C) 73
D) 69

Answer 1

What is the next number in this series ?

4, 6, 12, 18, 30, 42, 60, ?
A) 71
B) 72
C) 73
D) 69

Answer: B) 72

Explanation:

4 (3 and 5 are prime)
6 (5 and 7 are prime)
12 (11 and 13 are prime)
18 (17 and 19 are prime)
30 (29 and 31 are prime)
42 (41 and 43 are prime)
60 (59 and 61 are prime)

=> 72 (71 and 73 are prime)

Answer 2

hey

here is answer

answer is

72

as it is following prime numbers+1

like

2+1=3
5+1=6
11+1=12
17+1=18
29+1=30
41+1=50
59+1=60
71+1=72


hope it helps

thanks