The factors of 21 are 1, 3, 7, 21.
The factors which are not a multiple of 7 are 1 and 3.
The Least Common Multiple is 35(this occurs when the larger number is already a multiple of the smaller one)(*The Greatest Common Factor is 7. This likewise occurs when the smaller number is a factor of the larger number.)Since 35 is a multiple of 7, it is automatically the LCM.
3x7=21 3 and 7 are prime numbers, so 3x7 is the factor tree of the number 21.
The factors of 14 are: 1, 2, 7, 14 → the factors which are not a multiple of 2 are 1 and 7.
The (LCM) Least Common Multiple of 7 and 3 is 21 because that is the LEAST number that both 3 and 7 go into.
7x9=63
7
21 has 3 as a factor and is a multiple of 7, and so as 210, 105, and an infinite number of other numbers.
3 and 7 or 1 and 21 or 3 and 21 or 7 and 21. 21 and any factor of 21.
21 or 35
No, 7 is a factor of them.
3 is a factor of 21 and it is not a multiple of 7.
The only number that could be both a factor and a multiple is 7 itself.
2 is a factor of 14 but not a multiple of 7.
The greatest common multiple of any set of integers is infinite.--------------------------------------------------------------------------------------------------------Did you perhaps mean:the greatest common FACTOR (the greatest number which divides into 14 and 21 without remainder): gcf(14, 21) = 7;the LOWEST common multiple (the smallest number which is a positive multiple of both 14 and 21): lcm(14, 21) = 42
you would have to make a factor tree for 8, 14, and 21. 8 equals 2*2*2. 14 equals 7*2 and 21 equals 7*3. Then you have to see what is the lowest number that they have in common. 8,14,21 do not have a number in commone so there isn't a common multiple.
d. 3
21