im just proving that all meme numbers are connected.
ok, so 9+10 is 21 and 21x2 is 42 but 42 divided by 6 is 7, meaning 6x7 is 42. now take the 2 numbers in 21, which are 2 and 1. if you add 2 to 67 you get 69. And if you subtract 1 from 67, you get 66. and since we removed the numbers from 21, now it equals 0. Take that 0 and put after 42. you get 420. so 21, 42, 66, 67, 69, and 420 are all connected.