# How is each factor of an expression called? [closed]

$$mc^2.$$ is called an expression. Correct me if I'm wrong. I'd like to see this expression as $$m * c^2.$$ Here, one of the expression's factors is $m$. Is there a general name for the factors of an expression, or can I just call them however I like?

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## closed as unclear what you're asking by rschwieb, Pedro Tamaroff♦, Ｊ. Ｍ., user86418, Lost1Feb 28 '14 at 0:17

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$m$ is a multiplier and $c^2$ is a multiplicand, when you multiply them you get a product. Both $m$ and $c^2$ are factors of that product. –  glebovg Nov 6 '12 at 19:14
Multiples...? Of course, here m = mass (in kilograms), c=light's speed in meters by second., and thus the energy E is given in kg*m^2/s^2 , which is Joules. –  DonAntonio Nov 6 '12 at 19:20
@DonAntonio I am not sure, but I think this question has nothing to do with physics. –  glebovg Nov 6 '12 at 19:22
If multiplication is all you are talking about, then the general name for factors in this sense is factors. –  rschwieb Nov 6 '12 at 20:11