if you know your threes just times it by numbers you know like, 6,8,20,50,90,120,140 and so on
There are three numbers between 10 and 50 which are divisible by both 3 and 5. All numbers that are multiples of 3 and 5 are the multiples of the lowest common multiples (lcm) of 3 and 5 which is 15. The multiples of 15 between 10 and 50 are {15, 30 and 45}, thus there are 3 numbers.
33 multiples of 3 plus 12 multiples of 8 minus 4 multiples of both. 41%
Multiples of 3.
If both of your numbers divide into them evenly with no remainder, they are common multiples.
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.
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers
Multiples of 12.
This question is true
Since both 3 and 5 are prime numbers, only numbers that are multiples of its product are the numbers that are divisible by both. 15 is the LCM of 3 and 5 and hence all multiples of 15 are divisible by both 3 and 5
60 numbers
To find numbers between 55 and 101 that are multiples of 3, 10, and 15, we need to find the numbers that are common multiples of these numbers within the given range. The common multiples of 3, 10, and 15 are numbers that are divisible by the least common multiple (LCM) of these numbers, which is 30. Therefore, the numbers between 55 and 101 that are multiples of 3, 10, and 15 are 60, 90, and any other multiples of 30 within that range.