257 , 263 , 269 , 271 , 277 , 281 , 283 , 293 , 307 , 311 , 313 , 317 , 331 , 337 , 347 , 349 , 353 , 359 , 367 , 373 , 379 , 383 , 389 , 397 , 401 , 409 , 419 , 421 , 431 , 433 , 439 , 443 , 449 , 457 , 461 , 463 , 467 , 479 , 487 , 491 , 499 , 503 , 509
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2, 4, 8, 16, 32, 64, 128, 256, and 512
2, 4, 8, 16, 32, 64, 128, 256, 512
910/512 = 455/256
1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048.
Using prime factorization, there are 2 three digit numbers with 9 factors: 512 and 768. There are no three digit numbers with 10 or more prime factors. 512=2^9 and 768=3*2^8