0 is a natural number, as well as every number above 0.
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Mathematicians are not agreed on this point. Some use N and N+ to distinguish between the set of Natural numbers including 0, and not including 0.
natural numbers are 1, 2, 3, 4, 5.......... whole numbers are natural numbers including 0, i.e., 0, 1, 2, 3, 4, 5..........
counting numbers are like natural numbers not including 0
100000 - including numbers with leading 0s
Any positive integer not including 0. Also known as "counting numbers." 1,2,3,4,5,6,7,8,9,10,11...