I use space key
I made 271 to 280. luckyblocks: 273, 280 multiples of 4: 272, 276, 280 Multiples of 8: 272, 280 multiples of 16: 272 primeblocks: 271, 277 Pallindromeblocks: 275 Also 276 looks like 11 Music is POP by Fantastic number