Each number in the series is multiplied by itself one more "times" than the preceding number:
12 x 2 = 24
24 x 3 = 72
72 x 4 = 288
288 x 5 = 1,440
So, 1440 is the answer to your question.
10
768
12 * 24 = 288
24 * 12 = 288
What would be the next number in this series 15 12 13 10 11 8?
3
It is: 5*288 = 1440
It is: 1440
55
The next number in the pattern is 324. Each number in the pattern is obtained by multiplying the previous number by 3.
-276
768
12
The rule of this pattern is -2 + 6 +4 so the next number would be 16.
12
0.0417
75
eight