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.
Multiples of 49.
The factors are 1, 7 and 49. The multiples are 0, 49, 98, 147, 196 ... (just keep adding 49)
Multiples of 49: 49,98,147,196,245,294,343,392,441,etc.
They are 1*49=49 and 7*7=49
They can be and are.
The multiples are as follows:49,56,63,70,77,84
7 and 49
Three of them are 49, 490 and 49049.
The first 10 multiples of 49: 49, 98, 147, 196, 245, 294, 343, 392, 441, 490
98,147,and 196