13 16 20 23
prime numbers - next number is 13
42 is the next number in this sequence. This number sequence is adding the next prime number to the last number. So 1 + 2 = 3. Then 3 + 3 = 6, 6 + 5 = 11, 11 + 7 = 18, 18 + 11 = 29. The next prime number after 11 is 13, so 29 + 13 = 42. The next numbers would be 59 (42+17), 78 (59+19), and 101 (78+23)
18 9 11 14 7 9 12 the series is like 18/2= 9 9+2=11 11+3=14 14/2=7 7+2=9 9+3=12 so next number will be.. 12/2=6 then 6+2=8 8+3=11
These are all prime numbers. The next one is 17
the next number to the sequence 2 5 11 20 32 47 is 65 the difference between 2 and 5 is 3, diff. of 5 and 11 is 6, 11 and 20, 9, 20 and 32, 12, 32 and 47, 15... the difference between each number increases by 3. that is with the initial difference of 2 and 5 is 3, get the difference of 2 and 5, 3 and add 3, which will make it six, add it to 5 then you'll get 11. repeat the process then viola.
Actually the next number in the sequence is 17 A 19 , 23 , 29 , 31 ,.......... Prim number
If you mean: 12, 11, 9, 6, 2 then the next number is -3 Because they are being reduced by 1, 2, 3, 4 and then 5
prime numbers - next number is 13
11
11 , 13... (prime no)
42 is the next number in this sequence. This number sequence is adding the next prime number to the last number. So 1 + 2 = 3. Then 3 + 3 = 6, 6 + 5 = 11, 11 + 7 = 18, 18 + 11 = 29. The next prime number after 11 is 13, so 29 + 13 = 42. The next numbers would be 59 (42+17), 78 (59+19), and 101 (78+23)
11
7, 11 and 13
2 3 5 7 11 13 17 19 23 ... Prime numbers
17 cause it is the next prime number
11
18 9 11 14 7 9 12 the series is like 18/2= 9 9+2=11 11+3=14 14/2=7 7+2=9 9+3=12 so next number will be.. 12/2=6 then 6+2=8 8+3=11