What are the first 6 digits of the number "Pi"?

The story behind the answer

Pi (π) is the ratio of a circle’s circumference to its diameter. Its decimal expansion begins 3.14159…, so the first six digits (including the leading 3) are 3.14159. The alternatives are incorrect—note especially that the 6th digit is 9, not 6, making 3.14169 wrong.

Pi is irrational and transcendental, meaning its digits never end or repeat, yet it appears everywhere in geometry and calculus (areas of circles, arc lengths, series, and waves). To remember 3.14159, try the mnemonic where each word’s length is a digit: “How I wish I could calculate pi” → 3-1-4-1-5-9.