How many floppy disks would it take to install Windows 10, Windows 8 or Windows 7 - if they were available?

A floppy disk can hold 1.44MB. Well according to calculations:

Windows 10 would take 2778 Floppy Disks

Windows 8 would take around 1,713 Floppy Disks. Some say the figure is 2,373.

Windows 7 would take around 1750 Floppy disks.

If you think the figures are wrong, find out the ISO/Installer sizes for each of these OS and do your math and let us know.