Take the alphabet and do the following conversion:
A = 1
B = 2
C = 3
...
Z = 26
Words are sums of the corresponding letter values. The word PRIME is prime.
Euler's number "e"
In 1683 the Swiss mathematician Jacob Bernoulli found the first approximation of the mathematical constant e while studying continuous compound interest. e is one of the most important numbers in mathematics alongside 0, 1, π and i.
Fun Maths fact:
The 'golden ratio' denoted 'φ', approximately equal to 1.618, widely considered the most beautiful ratio due to it's frequent appearance in nature and art throughout history, is also found throughout all the sides of a Pentagram! See if you can show this is true!
This is the logo for @ALMathsRevision. Notice how there are all the basic operations EXCEPT division (÷). Is @ALMathsRevision not teaching his students how to divide? Very suspicious. Follow me and I will teach you how to divide!