please describe the first type to me?
These contain numbers like 0,1,2,3,....
Number
The most familiar numbers are the natural numbers (sometimes called whole numbers or counting numbers): 1, 2, 3, and so on. Traditionally, the sequence of natural numbers started with 1 (0 was not even considered a number for the Ancient Greeks.) However, in the 19th century, set theorists and other mathematicians started including 0 (cardinality of the empty set, i.e. 0 elements, where 0 is thus the smallest cardinal number) in the set of natural numbers. Today, different mathematicians use the term to describe both sets, including 0 or not. The mathematical symbol for the set of all natural numbers is N, also written formula_8, and sometimes formula_9 or formula_10 when it is necessary to indicate whether the set should start with 0 or 1, respectively.
what is parity of zero? It is the quality of an integer (zero) being even or odd. Zero has the parity of even. why is zero even? Because it shares all the properties that characterize even numbers. what is a number? A mathematical object used to count, measure, and label. when was it first used? The first known system with place value was the Mesopotamian base 60 system (c. 3400 BC). are there different types of them? Numbers can be classified into sets, called number systems, such as the natural numbers and the real numbers.
wiki:25691713
Number [SEP] Natural numbers
The most familiar numbers are the natural numbers (sometimes called whole numbers or counting numbers): 1, 2, 3, and so on. Traditionally, the sequence of natural numbers started with 1 (0 was not even considered a number for the Ancient Greeks.) However, in the 19th century, set theorists and other mathematicians started including 0 (cardinality of the empty set, i.e. 0 elements, where 0 is thus the smallest cardinal number) in the set of natural numbers. Today, different mathematicians use the term to describe both sets, including 0 or not. The mathematical symbol for the set of all natural numbers is N, also written formula_8, and sometimes formula_9 or formula_10 when it is necessary to indicate whether the set should start with 0 or 1, respectively.