5×19

5×19 is the product of the integers 5 and 19. In standard arithmetic, it denotes multiplying 5 by 19, resulting in 95.

Calculation: 5×19 can be computed directly as 5×19 = 95. It can also be seen as 5×(20 − 1) = 100 − 5 = 95. Another view is repeated addition: 19 added to itself five times equals 95.

Properties: The result 95 factors as 5×19, so it is the product of two primes (a semiprime). It is divisible by both 5 and 19, and by neither 2 nor 3. In base-10 notation, the last digit is 5, reflecting divisibility by 5.

Applications: The product represents the area of a rectangle with side lengths 5 and 19, yielding 95 square units. It also serves as a simple example in teaching multiplication and the distributive property, as 5×19 = 5×(20−1) = 5×20 − 5×1.

Notation and variants: The expression may be written as 5×19, 5·19, or 5(19). In programming and some textbooks, multiplication may be implied by juxtaposition, such as 5(19).