Just 72. It was found by multiplying 8 and 9. --------------------------------------- The common multiples of two numbers are the multiples of their lowest common multiple. LCM(8, 9) = 72 The common multiples of 8 and 9 are 72, 144, 216, ... The only common multiples less than 100 are 72 only.
lcm(4, 9) = 36 → the two least common multiples (ie the first two common multiples) of 4 and 9 are 36 and 72.
The common multiples of 4 and 9 are 36, 72, 108 and so on.
To find a number that is not a common multiple of 4 and 9, we need to consider the multiples of each number. The multiples of 4 are 4, 8, 12, 16, 20, 24, ... and the multiples of 9 are 9, 18, 27, 36, 45, ... The first number in the list of multiples of 4 that is not a multiple of 9 is 4. Therefore, 4 is a number that is not a common multiple of 4 and 9.
1
9,18,27,36,45,54,63,72,81,90,99
63.
To find a common multiple of 3 and 4 that totals 9 less than 50, we first need to list out the multiples of 3 and 4. Multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, and multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48. The common multiples are numbers that appear in both lists. The common multiple that totals 9 less than 50 is 36.
Common multiples of 7 and 4 include any multiple of 28.
They are the first three multiples of their lowest common multiple: 36, 72, 108.
The multiples of 36 go on forever.
Any multiple of 36.