700 (number)
From Halbeeg, the open encyclopedia · Af-Soomaali
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700 (seven hundred) is a natural number that lies between 699 and 701. It consists of seven hundred ones, which is 7 × 100. In the decimal number system it is written with three digits: 7, 0, and 0.
700 is an even number and a composite number, meaning it has factors other than 1 and itself. Its prime factors are 2, 5, and 7, with prime factorization 2² × 5² × 7.
Mathematical properties
When expressed by its prime factors, 700 can be written as 2 × 2 × 5 × 5 × 7. It is divisible by 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, and 700. Because it ends in two zeros, it is divisible by 100 evenly.
700 is not a perfect square, as its square root is approximately 26.46. However, it equals 7 times 10², making it convenient for calculations involving standard measurements and scales.
Representation in other systems
In Roman numerals, 700 is written as DCC (D = 500, each C = 100). In binary it is 1010111100. In hexadecimal it is 2BC.
General usage
700 is commonly used in year numbering, such as the year 700 in the Christian era or 700 BCE. It is also used in the names of roads, motor vehicle models, and telephone numbers in various countries, with the meaning depending on the system in use.