What is an easy way to remember the formula for a newton?
A Newton is a measure of force, like a pound. There are lots of things that result in Newtons of force.
For example:
F = m g = force of gravity in Newtons if m is kilograms and g is m/s^2
F = m a same as above but a is acceleration
F = q E where q is electrical charge in Coulombs and E is electric field in Volts/meter
F = p A where p is pressure in Pascals and A is area in meters^2
on and on and on. In other words your question makes no sense to me.