Happy Pi Day, one and all! This is a chance for you to memorize that most useful of numbers: Pi! Below, I've split it up into the mental chunks I use. Some of them have mnemonics built in, or are contextually related to the previous chunk: Sharing digits in the same place, counts that match numbers in the last segments. In some, the first digit is the sum of subsequent digits, or the last digit is the sum of preceding digits. Some have little patterns, perhaps palindromes or alternating digits descending; some have patterns so vague they don't have any real significance. Some were tougher; you just gotta memorize them. So, say it with me:

3. 14 15 (add the 1 to the 14) 9265 (again ends in 5) 35 8979 323 (Palindrome) 846 264 (46 reversed; 64 is 8 ^ 2) 338 3279 50288 41 971 693 993 (at end 93 is repeated; first digit taken from chunk before preceding chunk) 7510 59209 74 944 592 307 8164 (8 squared is 64) 062 862 08998 (starts with the first digits of the preceding two chunks, then palindromes) 6280 (6+2 = 8) 348 253 4211 (4,2,1 is 2^i for i = 2...0). 706 79 8214 (again, powers of two, with the 4 out of order) 808 651 32823 (palindrome) 06647