12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99
60 numbers
-3
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers
The multiples of 10 are numbers that can be evenly divided by 10. In the case of 3-digit multiples of 10, the smallest 3-digit multiple of 10 is 100 (10 x 10), and the largest 3-digit multiple of 10 is 990 (10 x 99). Therefore, the 3-digit multiples of 10 range from 100 to 990, inclusive.
3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102All the multiples of 3.
60 numbers
All integers have an infinite amount of multiples.
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
-3
30, 60 and 90.
There are none.
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers
The multiples of 10 are numbers that can be evenly divided by 10. In the case of 3-digit multiples of 10, the smallest 3-digit multiple of 10 is 100 (10 x 10), and the largest 3-digit multiple of 10 is 990 (10 x 99). Therefore, the 3-digit multiples of 10 range from 100 to 990, inclusive.
The prime factors of 81 are 3, 3, 3, and 3 - so the only two-digit factor is 27, which is 3 x 3 x 3.
To determine the number of 3-digit numbers that are multiples of 5, we need to find the first and last 3-digit multiples of 5. The first 3-digit multiple of 5 is 100, and the last 3-digit multiple of 5 is 995. To find the total number of such multiples, we can use the formula (Last - First) / 5 + 1 = (995 - 100) / 5 + 1 = 180. Therefore, there are 180 3-digit numbers that are multiples of 5.
Multiples of 30 from 120 to 990
There are more than four, starting with 12, 15, 18 and 21.