CXLVII is the Roman numeral representation for the number 147. In the Roman numeral system, "C" stands for 100, "XL" represents 40, and "VII" signifies 7. When combined, these values total 147. Roman numerals are often used in various contexts, such as clock faces, book chapters, and historical events. The number 147 has significance in mathematics as well. It is an odd number and can be expressed as the product of prime factors: 3, 7, and 7 (or 3 \times 7^2). Additionally, 147 is the sum of the first 12 positive integers, making it a triangular number.