The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
Two common multiples of 21 and 15 are 105 and 315.
Multiples? There are an infinite amount. Factors on the other hand, there are: 1, 3, 7 and 21.
Because they are multiples of 5. All multiples of 5 have 5 as a factor, which means they are divisible by 5.
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.
The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
21, 42, 63, 84, 105.
-16
7, 14, 21, 28, 35
They are: 7 14 21 28 and 35
14 21 28 35 42
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
Multiples 21: 1,3,7,21Multiples 49: 1,7,49
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.