which is the greatest?

Answer:
[See Below]
Step-by-step explanation:
✦ Solve the equation:
✦ Solve the equation:
✦ Solve the equation:
✦ Solve the equation:
So we can determine that [tex]6.23*10^{12}[/tex] is the Greatest.
~Hope this helps Mate. If you need anything feel free to message me.