Partition table entries are not in disk order.
Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x027306cc

Device     Boot   Start       End   Sectors   Size Id Type
/dev/sdc1  *       2048   3999743   3997696   1.9G 82 Linux swap / Solaris
/dev/sdc2       4001790 976771071 972769282 463.9G  5 Extended
/dev/sdc5       4001792 976771071 972769280 463.9G 83 Linux