Directions (Qs.1 to 5): In each of the following questions a number series is given. In each series only one number is wrong that does not follow the given pattern of the series. Find out that wrong number.
Question No : 1
65520 9360 1560 315 78 26
(1) 315
(2) 65520
(3) 9360
(4) 78
(5) 1560
Question No : 2
19 133 798 3980 15960 47880
(1) 798
(2) 3980
(3) 15960
(4) 47880
(5) 133
Question No : 3
2592 1296 1944 4860 17010 76540
(1) 1296
(2) 4860
(3) 17010
(4) 76540
(5) 1944
Question No : 4
120 660 370 579 390 570
(1) 660
(2) 370
(3) 570
(4) 390
(5) 579
Question No : 5
5679 5560 5322 4965 4489 3895
(1) 3895
(2) 5322
(3) 5560
(4) 5679
(5) 4965