Forty, or 40, is a Numberblock made up of 40 blocks. He is voiced by Marcel McCalla.
Forty has light green blocks with green borders, green limbs, green lips, rectangle eyes and rectangle eyebrows with small rectangles on them. He also has an array display because he is a super rectangle (8 factors).
- Thirty's Big Top (debut)
- Land of the Giants
- Sixty's High Score
- The Big One
- More to Explore
- Figure It Out (picture)
- Four on the Floor
- Sky High Fives
- One Giant Step Squad
- Square on the Moon
- Heroes With Zeroes
- 100 Ways to Leave the Planet
- About Time
- Total: 13 + 1 picture
- Interestingly enough, aside from sounding like Four, he sounds more like Four in his Series 1 appearances (higher-pitched voice).
- He has 8 factors, which makes him a super-duper rectangle.
- Forty is the third multiple of 5 to be male, the first being Twenty, and the second being Thirty-Five.
- He is the fourth character to have the same voice actor as his half(Twenty), the first one is Four(Two), the second being Eight(Four), the third one being Fourteen(Seven), and the fifth one would be Eighty(Forty).
- Forty has a pet furry oblong named Oblongy.