Did you know that the number zero is the only number that cannot be represented by Roman numerals? It wasn't until the Hindu-Arabic numeral system introduced it that zero became a recognized number. Another interesting fact is that the word mathematics comes from the Greek word mathema, which means knowledge or learning. The ancient Greeks considered math not just a subject but a way of life. In 2006, a farmer named Jon Norstad discovered a rare prime number known as the Mersenne prime, which has over nine million digits! Prime numbers are fascinating because they can only be divided by 1 and themselves. Speaking of numbers, did you know that the number 1729 is known as the Ramanujan-Hardy number? It is said that mathematician Srinivasa Ramanujan once told British mathematician G. H. Hardy that 1729 was a dull number, to which Hardy responded that it is actually quite interesting because it is the smallest number that can be expressed as the sum of two cubes in two different ways (1729 = 1^3 + 12^3 = 9^3 + 10^3). Lastly, the Fibonacci sequence, where each number is the sum of the two preceding ones (0, 1, 1, 2, 3, 5, 8, 13, 21, and so on), can be found in nature in patterns like the arrangement of leaves on a stem or the spiral of a seashell. Math truly is everywhere!