Numbers such as 0, 1, 2, 3 are also called the wholenumbers.*apex* ---->>Counting-PurpleLicious-
whole
They are called prime numbers.
9 (factors 1, 3, and 9) and 10 (factors 1, 2, 5, and 10) are coprime numbers. Numbers are coprime (also called relatively prime) if 1 is their only common factor.
Rational numbers whose square roots are whole numbers are themselves whole numbers. They are called square numbers, e.g. 1, 4, 9, 16, 25 and so on.
Numbers such as 0, 1, 2, 3 are also called the wholenumbers.*apex* ---->>Counting-PurpleLicious-
The set of numbers {1, 2, 3, 4, …} is called the Natural Numbers. These numbers could also be called the counting numbers or the cardinal numbers.
whole
Positive integers, (whole numbers) starting at 1
Numbers divisible by 1 & number itself are called prime numbers. These numbers also have the property to be odd numbers.
positive integers whole numbersrational numbers
They both exclude fractions and irrational numbers. Natural numbers are a subset of whole numbers (also called integers); Natural numbers are any positive whole number (meaning any whole number 1 or greater). Whole numbers, also called integers, can be zero or negative.
two numbers with a product of 1 are called elements
Natural numbers are non-negative whole numbers (no decimals or fractions). This would be 0, 1, 2, 3, 4, 5, 6, etc...
The numbers 1, 2, 3, 4, 5.... are called the natural numbers, or sometimes, the counting numbers.
The counting numbers from 1 to 20 are called natural numbers. There are larger sets that include the numbers from 1 to 20, but have other members as well. For example, the integers contain 1 through 20, but also all numbers 21, 22, 23, ... The set of real numbers includes all numbers on the number line, which includes 0 and negative numbers and irrational numbers like pi, but also includes 1 through 20. Etc.
1