5:30 PM EST To PST: Why Your Calendar Is Lying To You! - Fizz News

Oct 31, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ५ (5)). See 5 § Evolution of the Arabic digit for more. Your guide to the number 5, an odd number which is prime. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun. Properties of 5: prime decomposition, primality test, divisors, arithmetic properties, and conversion in binary, octal, hexadecimal, etc.