What is the coefficient of 639X?

We start by showing you some examples where 639 is the coefficient, to give you a better understanding of what a coefficient means.

The coefficient of 639Y is 639.

The coefficient of X⁶³⁹ is 639.

The coefficient of 639^X is 639.

The coefficient of 639XY is 639.

The coefficient of 639^XY is 639.

The coefficient of XY⁶³⁹ is 639.

As you can see from the examples above, the coefficient is the number that changes the variable.

Therefore, the coefficient of 639X is 639.

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What is the coefficient of 640X?
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