1000-1999

Could you clarify what you want to do with the range 1000–1999? Here are a few common options I can help with: - Quick facts about 1000–1999 (inclusive) - There are 1000 integers in this range. - Exactly 500 are even and 500 are odd. - Multiples of 3: 333 numbers. - Multiples of 9: 111 numbers. - Palindromes in this range: 10 (1001, 1111, 1221, 1331, 1441, 1551, 1661, 1771, 1881, 1991). - Squares in this range: 13 numbers (32^2 = 1024 up to 44^2 = 1936). - Primes in this range: 135 primes (since π(1999) − π(999) = 303 − 168 = 135). Example primes: 1009, 1013, 1019, 1021, 1031, ... - Practice problems (I can give fully worked solutions) - Count of numbers divisible by a given n (e.g., 3, 5, 7) within 1000–1999. - How many numbers have a given digit property (e.g., digits strictly increasing, sum of digits = 10, etc.). - List all 4-digit palindromes in this range. - Find primes in a subrange (e.g., 1100–1500) or count primes there. - List or generate numbers with a specific property (e.g., all four-digit numbers starting with 1 that are multiples of 7, or all palindromes, or all squares). Tell me which option you want (quick facts, problem set, or a specific property), and I’ll tailor the content and provide step-by-step solutions.