how many years after the Declaration of Independence was George Washington inaugurated as the first ...>?

Question

how many years after the Declaration of Independence was George Washington inaugurated as the first President of the U.S.? The answer is a two digit prime number. The ones' digit of the answer is 2 more than the tens' digit. The product of the digits is a prime number

how you got it???

Answer 1

technically Washington was not the 1st president of the US. He was the first "elected" president.

He was in office beginning in 1789. The Declaration of Independence was signed in 1776.

A difference of 13 years.