Is 100000 cm greater than 1 mile?

Convert to same units and then a comparison can be made:

1 in = 2.54 cm (exactly)

1 mile = 63360 in = 63360 × 2.54 cm = 160934.4 cm (exactly)

100,000 < 160,934.4

→ 100,000 cm < 160,934.4 cm

→ 100,000 cm <1 mile

→ No 100,000 cm is less than 1 mile.