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15 is a composite, deficient, lucky, and pentadecimal number with many interesting features in mathematics, science, religion, and culture. Learn about its divisors, factorization, polygons, partitions, tilings, symmetry, and more.
Learn the origin, usage, and examples of the word fifteen, a number that is one more than fourteen. Find out how to say fifteen in different languages and play word games related to fifteen.
Jan 27, 2023 · Learn about the history, culture, and science of the number 15, from Shakespeare to Warhol, from phosphorous to quinceañera. Discover how 15 is connected to weddings, emergencies, flags, games, presidents, and more.
May 2, 2024 · Learn about the number 15 in mathematics, religion, and culture. Discover the meaning of 15 in magic squares, amicable pairs, and other topics.
Learn about the number 15, its properties, and how to write it in different systems. Find out that 15 is an odd number, divisible by 1, 3, 5, and 15, and written as XV in Roman numerals.
Learn about the meaning and symbolism of number 15, a triangular number and the number of the Magic Square. Discover the fun facts and events related to number 15, such as the Quinceañera, the Magna Carta, and the Fifteen Mysteries of the Rosary.
Learn how to find the factors, pair factors, prime factors and prime factorisation of 15 with examples and video lesson. Also, explore the common factors, GCD and multiples of 15 with related articles and practise questions.
