(Unity) One is the loneliest number. It is neither composite, nor is it prime. It is the unit of our number system, and stands alone.
One is the best. “We’re #1! We’re #1!”
I am certain I was taught in elementary school that ‘1’ is a prime number. I remember a poster in the classroom that put the prime numbers from 1 – 100 in a 10 by 10 grid, displaying only 1, 2, 3, 5 …. These days that is not the case. I’m not sure when it changed, but my curiosity clings to this topic so I’ll write more posts about it on a later date.
i wonder, what other things was I taught that are now incorrect?
Dinosaurs are not lizards.
Pterodactyls are not dinosaurs.
There is no such thing as an ultimate primary color, just color spaces.
Pluto is no longer a planet.
“Kingdom Phylum Class Order Family Genus Species” is not the… sigh
The cake is a lie. (Wait, I think this one was correct.)
Just what is the world coming to?
What are some of the things you learned in school that later you found was completely wrong?