7, 14, 21, 28, 35
There are 179 multiples of 5 between 101 and 999. 101 ÷ 5 = 201/5 → first multiple of 5 ≥ 101 is 21 x 5 999 ÷ 5 = 1994/5 → last multiple of 5 ≤ 999 is 199 x 5 → number of multiples of 5 between 101 and 999 is 199 - 21 + 1 = 179.
The first 3 multiples of 7 are: 7, 14, and 21.
10
The first 6 multiples of 5 are: 5, 10, 15, 20, 25, and 30.
The first five multiples of 21 are: 21, 42, 63, 84, 105.
The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
21, 42, 63, 84, 105.
-16
7, 14, 21, 28, 35
7, 14, 21, 28, 35
The first 10 multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50.The first 10 multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, and 70.
There are 179 multiples of 5 between 101 and 999. 101 ÷ 5 = 201/5 → first multiple of 5 ≥ 101 is 21 x 5 999 ÷ 5 = 1994/5 → last multiple of 5 ≤ 999 is 199 x 5 → number of multiples of 5 between 101 and 999 is 199 - 21 + 1 = 179.
7, 14, 21, 28, 35
1 21370
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
21, 42, 63, 84.