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[quote="RArvay"]I find it amazing that all the sites I looked at did not even mention what N was.[/quote]
SI units and their symbols are considered well known so they needn't be explained. An explanation is required when a similar symbol is used for some other purpose. Usually unit symbols are written in a straight type and other symbols in italics (or sometimes slanted), but that depends on the medium.

Many thanks!
I find it amazing that all the sites I looked at
did not even mention what N was.

[quote="RArvay"].
G = 6.673×10-11 N m2 kg-2

Where G is the gravitational constant.
I have searched this for on several websites and
none of them states what N is.
Is it the number of gravitating bodies ???

Thanks.
.[/quote]
N stands for Newton. It is a unit of force: https://en.wikipedia.org/wiki/Newton_(unit).

.
G = 6.673×10-11 N m2 kg-2

Where G is the gravitational constant.
I have searched this for on several websites and
none of them states what N is.
Is it the number of gravitating bodies ???

Thanks.
.