210 (عدد): الفرق بين النسختين

{{Number|number = 210| cardinal = | ordinal = | ordinal text =| numeral =210| prime = | divisor=1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210| factorization =2×3×5×7|roman =CCXundefined| greek prefix = | latin prefix = |bin =| oct =| duo =| hex =}}

 

</ref><ref>{{harvtxt|Carothers|2000}} says: "ℕ is the set of natural numbers (positive integers)" (p. 3)</ref><ref name="Mac Lane & Birkhoff 1999 p15">{{harvtxt|Mac Lane|Birkhoff|1999}} include zero in the natural numbers: "Intuitively, the set {{math|ℕ {{=}} {{mset|0, 1, 2, ...}}}} of all "natural numbers" may be described as follows: {{math|ℕ}} contains an "initial" number 0; ...". They follow that with their version of the Peano Postulates. (p. 15)</ref>.طبيعي بين [[209 (عدد)|209]] و [[211 (عدد)|211]]