Learn a number and a word (Two In One)

► 264 is the largest number whose square is 'UNDULATING' (6-9-6-9-6)

264^2 = 69696

► UNDULATING


✎ Move with a smooth wavelike motion: "her body undulated to the thumping rhythm of the music".


✎ Have a wavy form or outline: "delightful views over undulating countryside".