There could be two alternating series blended into one.
2....3....6......where the terms are formed by the addition of increasing odd numbers
...6....8....12.where the terms are formed by the addition of increasing even numbers
Then the next number would be 6 + 5 = 11.
11.
9
12 / 5 = 2 with a remainder of 2. So 12/5 as a mixed number is 2 2/5
Let the number be x and so the expression is: 12+x/2
number factors for :12=2*2*318=2*3*326=2*13
11
11.
9
11
12 is a composite number that is a multiple of 2. 12 is not a prime number.
12 / 5 = 2 with a remainder of 2. So 12/5 as a mixed number is 2 2/5
What number best completes the sequence 1 1/2 5 10 1/2 18
The best shotgun shell for shooting ducks is a 3 to 3 1/2 inch 12 gauge with number 2 shot.
12/2 = 6, a whole number.
13 20 12
The number is 12. 12 ÷ 2 = 6 6 - 4 = 2
It is a deficient number. The first abundant number is 12. 12: 1,2,3,4,6,12 which equal 28 28>(12*2) and the abundance is 28-(12*2)=4