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Positive numbers are written with no sign or a '\({+}\)' sign in front of them and they are counted up from zero to the right on a number line. Any number below zero is a negative number.
They can be positive, negative or zero. 42, –8, and 10,000 are examples of integers. or fractional values. Any base to the power of zero equals 1 and any base to the power of one is the base itself.