A scientist repeats the millikan oil drop experiment in a different galaxy and the charge on the drops is measured in a unit called the electrino (el). The scientist obtains data for four drops. Drop Calculated charge
A 6.44 x 10^-14 el
B 1.38 x 10^-14 el
C 3.22 x 10 ^-14 el
D 1.84 x 10 ^-14 el

Required:
Given the results of the scientist's experiment, determine the charge on an electron in electrinos
.

Explanation:

We need a value that multiplied by different integers gives us the values of the charges given. For this we grab the smallest charge, divide it by other integers (since the elemental charge should comply with this condition) and multiply it by the ones mentioned at the beginning to try to obtain the other charges. We should expect results that were never measured also (which "could be"). For now lets ignore all the  and the units.