It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
1672 1672
From 1670 to 1672, Newton lectured on optics.
Robert Fruin has written: 'De oorlog van 1672' -- subject(s): Anglo-Dutch War, 1672-1674, Dutch War, 1672-1678
The Navigation Act of 1672 placed a tax or duty on certain items shipped from America to England.
1672
1672
In 1672
It was founded in 1672,
It started 1672
1672
1672
it was in 1672.