4 - Wikipedia Approximately four weeks (4 times 7 days) to a lunar month (synodic month = 29 54 days) Thus the number four is universally an integral part of primitive sacred calendars
4 (number) - New World Encyclopedia Four is the second square number (a "square number" is an integer that can be written as the square of some other integer) and the second centered triangular number
8 Fun Facts About the Number 4 - Facts. net Explore fascinating facts about the number 4 Discover its significance in various cultures, including its symbolism and representations in numerology, astrology, and mythology
About The Number 4 - Numeraly Discover the fascinating world of the number 4! Explore its meanings, facts, religious significance, angel number interpretations, and its role in arts and literature
Number 4 - Facts about the integer - Numbermatics Your guide to the number 4, an even composite number composed of a single prime multiplied by itself Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun