63
15, 30 and 45
81, 84, 87.
24, 48, 72, 96
72
Just 72.
It's 72
44 and 88 are the only common multiples of 4 and 11 that are less than 100
To find numbers that are multiples of both 3 and 5, we need to find the numbers that are common multiples of both 3 and 5. These are numbers that are divisible by the least common multiple of 3 and 5, which is 15. The first four numbers less than 70 that are multiples of both 3 and 5 are 15, 30, 45, and 60.
9,18,27,36,45,54,63,72,81,90,99
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.
Use the standard methods to use the LEAST common multiple. Then multiply that by 1, 2, 3, etc., to find additional common multiples.
Multiples of 7 that are less than 60 are 7, 14, 21, 28, 35, 42, 49, 56.Multiples of 14 that are less than 60 are 14, 28, 42, 56. Common multiples that are less than 60 are 14, 28, 42, and 56.
72.
63
21,42,63,84
22, 44