15 (fifteen) is the natural number following 14 and preceding 16. 15 as the difference of two positive squares (in orange). 15 is: The eighth composite number and the sixth semiprime and the first odd and fourth discrete semiprime; [1] its proper divisors are 1, 3, and 5, so the first of the form (3.q), [2] where q is a higher prime.

5 days ago · Below you can find the numbers from the Mega Millions draw on April 15th 2025. These are the five winning numbers and Mega Ball that you need to match to win a prize for the draw on April 15th. ... $15.00: 43,146: 2x : $10.00: 64,704 *Please note that California prize amounts might be different and pari-mutuel based on tickets sold in that ...

Jun 3, 2023 · The number 15 is often associated with creativity, self-expression, and personal magnetism. It symbolizes the ability to manifest dreams and desires into reality. People influenced by the number 15 are often imaginative, charming, and have a natural inclination towards the arts.

Number 15 is the number of the Magic Square. The magic square has been used in magic and as a talisman in many cultures around the globe for centuries. In Asia the magic square is called Lo Shu and is used to this day as a tool in feng-shui.

Jun 15, 2021 · The number 15 is a pretty cool number, really. Not only does it hold special significance as a sort of coming of age (beat that Sweet Sixteen!), but it’s got ties to many pretty classic board games – one of which is more than 5,000 years old! Whatever the reason, we sure are fans of this fun number!

15 (fifteen) is a number. It is between fourteen and sixteen, and is an odd number. It is divisible by 1, 3, 5, and 15. In Roman numerals, 15 is written as XV.

Did you know that 15 is the number of days in a fortnight, the number of years it takes for Saturn to orbit the Sun, and the number of keys on a traditional piano? In this article, we'll explore 15 interesting and surprising facts about the number 15, from its role in math and science to its cultural significance and historical significance.

In number symbolism: 15. As the product of two sacred numbers (3 × 5), 15 naturally has religious significance. In ancient Nineveh the goddess Ishtar was served by 15 priests, and the city had 15 gates. The 3 × 3 magic square has 15 as its magic constant,… Read More

Number 15 is a composite number. Factors of 15 are 3 * 5. Number 15 has 4 divisors: 1, 3, 5, 15. Sum of the divisors is 24. Number 15 is not a Fibonacci number. It is a Bell number. Number 15 is not a Catalan number. Number 15 is a regular number (Hamming number). It is a not factorial of any number. Number 15 is a deficient number and ...

Your guide to the number 15, an odd composite number composed of two distinct primes. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.