When you move the decimal point of a prime number to the right by one place, it increases 5.4 more compared to the original number. Find the original prime number.
5.4 9 [OP_DIV]
var_a = 5.4
var_b = 9
var_c = var_a / var_b
print('{:.2f}'.format(round(var_c+1e-10,2)))