7x4

7x4 denotes the product of the integers 7 and 4. The result is 28, an integer used in arithmetic, table multiplication, and area calculations.

Properties of this product include commutativity, since 7x4 = 4x7. The prime factorization of 28 is 2^2 × 7. Its divisors are 1, 2, 4, 7, 14, and 28; the proper divisors (1, 2, 4, 7, 14) sum to 28, making 28 a perfect number in number theory.

In practical terms, 7 by 4 represents the area of a rectangle with a length of 7 units and a width of 4 units, which equals 28 square units. In different numeral systems, 28 decimal is 11100 in binary and 1C in hexadecimal; in Roman numerals it is XXVIII.