Known as the counting numbers, this set 1, 2, 3 ,4 ,5, .... is also called the ___________________________

set of natural numbers or positive integers.

Known as the counting numbers, this set 1, 2, 3, 4, 5, .... is also called the set of natural numbers.

Known as the counting numbers, this set 1, 2, 3, 4, 5, .... is also called the "natural numbers."

To arrive at this answer, you can start by understanding the terms "counting numbers" and "natural numbers." Counting numbers, as the name suggests, are the numbers that we use for counting objects. These numbers begin from 1 and extend infinitely. On the other hand, natural numbers are the positive whole numbers beginning from 1 and extending infinitely.

From this information, we can conclude that counting numbers and natural numbers are synonymous, referring to the same set of numbers. Hence, the set 1, 2, 3, 4, 5, .... is also called the natural numbers.