An expresssion
no because it can also contain letters
An expression.
it is a varible
An expression.
No, not all expressions contain variables. An expression is a mathematical phrase that combines numbers, variables, and mathematical operations. A variable is a symbol that represents a quantity that can vary, such as x or y. Some expressions may only contain numbers and mathematical operations, such as addition, subtraction, multiplication, and division. For example, "3 + 5" is an expression that only contains numbers and the addition operation. However, an expression that contains at least one variable is known as an algebraic expression, and this type of expression is commonly used in algebra to represent mathematical relationships between variables. For example, "2x + 4" is an algebraic expression that contains the variable x and represents a linear equation in which y is equal to two times x plus four.
Those are prime numbers.
A expression that only contains numbers is a Numerical
term
A numerical expression in math terms has numbers and operations like for an example 1. 4+9 2. (8-2)+5
A numerical expression!
The difference between these two is that an expression only contains variables, numbers, and mathematical symbols, and an equation contains two expression with an equal sign that separate them. For example, while an expression is "2x-1", an equation is "2x-1 = 5x."
A mathematical prime number has only 2 factors. 1 and itself. 1 is not prime as it only has one factor. Both factors must be positive integers.