For any natural number k, 21k is a multiple of k.
So for example, if k=1, 21 is the first multiple.
Now if k=2, we have 42 which is the next one.
In fact for any number n, and any natural number k, kn is a multiple of n.
No but 21 is a multiple of 3 because 7*3 = 21
No, but 21 is a multiple of 7.
There are infinitely many of them so they cannot be listed. You can start with 21 and keep adding 3 until you have had enough of it.
21 is a multiple of 7 because, 3*7 = 21
21
The LCM of 10 and 21 is: 210Least Common Multiple (LCM) for 10 21 is 210
No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.
The least common multiple of 21 , 19 = 399
A common multiple of 9 and 21 is 63
dbygdygdygbfyfbifubyibuuwffuufufbufsfufbwbububsubuiqwfuiwuquyqifuiwuofwqufwwuwfuifuivfvfuvuwwfffwvuuwfufuvfwuvwffwfvwvufwvufwvufwvufvfuwvfuwfvwuuvfwvufwvufwfvuwuvfwvufwvufwvufwvuwfvuwfvufwvfwuuvwfuvfwvuwfvufvufwvufwuvfwuvfwvufvufwvufwvuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuooooooooooooooooooooofgiowuqhfwehfpQJHFP9dfqwp;WHFPfqwdph93f9qdppppppppppppppppppppppppppppppiwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdddddddddddddddddddddddddddddddhhhhhhhhhhhhhhhhhhfffffffffffffffffffffffffjjjjjjjjjjjjjjjjjjjjjjjjssssssssssssssssss99999999999999999www3hhwj
The Least Common Multiple of 18 and 21 is 126.
Since 105 is a multiple of 21, it is automatically the LCM.