Multiple choice general knowledge math & puzzles 111,111,111 * 111,111,111 = 12,345,678,987,654,321 True False Reveal answer Fill a bubble to check yourself A Correct answer Explanation Multiplying a repunit of nine ones by itself (111,111,111 * 111,111,111) produces a symmetric palindromic number counting up to nine and back down to one (12,345,678,987,654,321). This mathematical pattern is correct, so the statement is true.