Definitions for natural number
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Random House Webster's College Dictionary
nat′ural num′ber(n.)
a positive integer or zero.
Category: Math
Origin of natural number:
1755–65
Princeton's WordNet
natural number(noun)
the number 1 and any other number obtained by adding 1 to it repeatedly
Wiktionary
natural number(Noun)
a member of the set of natural numbers - a positive integer (set of [1,2,3,...])
natural number(Noun)
a member of the set of natural numbers - a non-negative integer (set of [0,1,2,3,...]).
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