110 | 121 | 132 | 143 | 154 | 165 | 176 | 187 | 198 |
209 | 220 | 231 | 242 | 253 | 264 | 275 | 286 | 297 |
308 | 319 | 330 | 341 | 352 | 363 | 374 | 385 | 396 |
407 | 418 | 429 | 440 | 451 | 462 | 473 | 484 | 495 |
506 | 517 | 528 | 539 | 550 | 561 | 572 | 583 | 594 |
605 | 616 | 627 | 638 | 649 | 660 | 671 | 682 | 693 |
704 | 715 | 726 | 737 | 748 | 759 | 770 | 781 | 792 |
803 | 814 | 825 | 836 | 847 | 858 | 869 | 880 | 891 |
902 | 913 | 924 | 935 | 946 | 957 | 968 | 979 | 990 |
lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.
The digit appears eleven time from 1 to 100.
3
Multiple of both 2 and 3 <=> multiple of 6 So require 2 digit multiples of 6. 2*6 = 12 and 16*6=96 So the answer is 16-2+1 = 15
All multiples of 3 have digits that add up to a multiple of 3. There are 333 multiples of 3 between 1 and 1000.
100, 110 and 120 are 3 digit multiplies of 10.
Multiples of 30 from 120 to 990
lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.
There are 49 3-digit numbers - from 108 to 990 inclusive.
Not necessarily. Consider 444. The digits are not different. The first and second digits are not multiples of 3 The first digit is not greater than the second digit. In spite of all that, 444 is a 3-digit number
All integers have an infinite amount of multiples.
99
50 of them.
60 numbers
The digit appears eleven time from 1 to 100.
-3
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers