20×55

20×55 denotes the product of the integers 20 and 55. The result is 1,100 in decimal.

Prime factorization and relation: 1100 factors as 2^2 × 5^2 × 11. This follows from 20 = 2^2 × 5 and 55 = 5 × 11, so 20×55 = (2^2 × 5) × (5 × 11) = 2^2 × 5^2 × 11.

Common divisor: The greatest common divisor of 20 and 55 is 5, illustrating how factoring can simplify multiplication for partial computations.

Base representations: In binary, 1100_10 equals 10001001100_2; in hexadecimal, it is 0x44C.

Applications and context: As a numeric value, 1100 is used in arithmetic calculations, geometry for rectilinear area problems where the sides are 20 and 55 units, and as a straightforward example in multiplication tables and teaching concepts of factorization and bases.