315
The LCM of 7 and 9 is 63.
The first 5 multiples of 5 are: 5, 10, 15, 20, 25 The first 5 multiples of 9 are: 9, 18, 27, 36, 45 The first 5 multiples of both 5 and 9 are: 45, 90, 135, 180, 225
The first 5 common multiples are the first 5 multiples of their lowest common multiple (LCM) LCM(9, 10) = 90 → first 5 common multiples are 90, 180, 270, 360, 450.
630, 1260, 1890, 2520, 3150, 3780 +630 . . .
315
7, 28, 49, 63, 105 is the series of multiples of 7 using 0-9 only once.
The numbers 3, 5, 7, 9, 11, 13, 15, 17, and 19 are not multiples of 2.
Multiples of 3: 123, 45, 6, 78, and 90 Multiples of 7: 7, 14, 28, 56, and 903 Primes: 5, 23, 41, 67, and 809
Multiples of 1- 1, 2 3, 4 ,5, 6, 7, 8, 9, 10-- Like counting Multiples of 2- 2,4,6,8,10,12, ect. Multiples of 3- 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54, Multiples of 4- Multiples of 5- Multiples of 6
1 2 3 4 5 6 7 8 9
7, 42, 63, 98, 105
There are 13 two-digit multiples of 7.
6 8 9 2 5 7
The common multiples of 3, 5, 7, 9, and 11 are the numbers that are divisible by all of these numbers. The least common multiple (LCM) of these numbers is 10395. Therefore, any multiple of 10395 is a common multiple of 3, 5, 7, 9, and 11.
The LCM of 7 and 9 is 63.
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.