Math symbols used in computers

I’ve always been confused about the math symbols used in computers .. so here’s the symbols for my ease and your knowledge.. 

prefix    symbol  power
kilo       k          10^3
mega    M         10^6
giga      G          10^9
tera       T          10^12
peta      P          10^15
exa       E          10^18
zetta     Z          10^21
yotta     Y          10^24