1372

Overview

1372 can refer either to the natural number that follows 1371 and precedes 1373, or to the year 1372 in the Common Era. As a number it has simple arithmetic and divisibility properties; as a year it falls in the later Middle Ages and is associated with diplomatic and military developments in Western Europe and the Iberian Peninsula.

Mathematical properties

In arithmetic, 1372 is an even composite number whose prime factorization is 2² × 7³. It has 12 positive divisors and the sum of all divisors is 2,800, which implies the sum of proper divisors is 1,428 — greater than the number itself — so 1372 is classified as an abundant number. In Roman numerals it is written as MCCCLXXII.

Year 1372: context and significance

The year 1372 lies in the late 14th century, a period marked by the Hundred Years' War between England and France, shifting alliances among Iberian kingdoms, and continued social and political change across Europe. Naval power, dynastic rivalry, and regional diplomacy were important themes of the era.

Notable events and developments

• Battle of La Rochelle (1372): A significant naval engagement in which a Castilian fleet defeated the English. The clash affected English maritime influence and the security of English possessions on the Continent.
• Anglo–Iberian diplomacy: In the early 1370s Portugal and England advanced closer diplomatic ties. Treaties and agreements in this period laid groundwork that would evolve into more formal alliances between the kingdoms later in the century.
• Regional shifts: The Balkans and Eastern Mediterranean continued to see the expansion of Ottoman influence and the reconfiguration of power among local principalities, while Italian city-states and trading centers sustained vibrant economic activity.

Uses, designations and notable facts

Beyond mathematics and chronology, the sequence "1372" is used as an identifier in catalogues, archival references, and product or model numbers. As with other four‑digit numbers, it appears in street addresses, registration numbers and other administrative contexts. Its mathematical characterization (even, abundant, composed of small prime powers) makes it unremarkable arithmetically but straightforward to analyze.

Whether encountered as a number or a year, 1372 sits in threads of medieval European history and elementary number theory; understanding either sense involves placing it within broader chronological or mathematical systems rather than treating it as an isolated fact.