None is divisible by all those.
24, 30 and 36.
9
If you want to get technical, infinite. But, whole numbers? Only one not including 30 and 40; 35.
There are 9 numbers evenly divisible by 10 : 10, 20, 30, 40, 50, 60, 70, 80, and 90
None is divisible by all those.
24, 30 and 36.
9
All real numbers are divisible by four. However, no numbers with decimal extensions are evenly divisible by four. The only numbers evenly divisible by four between 30 and 39 are 32 and 36. Otherwise, including decimals, there would be an infinite number of rational numbers between those limits divisible by four, and infinitely more than that if the real numbers are included (numbers that cannot be represented by terminating or repeating continued decimal expansions).
To find numbers between 30 and 40 that are divisible by both 4 and 9, we need to find the least common multiple of 4 and 9, which is 36. The numbers between 30 and 40 that are divisible by 4 and 9 are 36.
If you want to get technical, infinite. But, whole numbers? Only one not including 30 and 40; 35.
Oh, isn't that a happy little question! To find the two-digit numbers divisible by 3, we start by finding the first two-digit number divisible by 3, which is 12. Then, we find the last two-digit number divisible by 3, which is 99. Now, we can count how many numbers there are between 12 and 99 that are divisible by 3.
If you are asking for the prime numbers between 15 and 30, they are 17, 19, 23, and 29. This is because prime numbers are only divisible by themselves and 1.
Any multiple of 4 between 32 and 264 inclusive.
There are 9 numbers evenly divisible by 10 : 10, 20, 30, 40, 50, 60, 70, 80, and 90
30,60,90,120,150,180,210,240,270,300,330,360,390,420,450,480,510,540,570, 600,630,660,690,720,750,780,810,840,900,930,960,990,1020,1050,1080,1110
The only numbers between 30 and 50 that could be prime are 31, 33, 35, 37, 39, 41, 43, 45, 47, 49 because all other numbers are even. 35 and 45 cannot be prime because they are divisible by 5. 33 is divisible by 3, so it is not prime, and 49 is divisible by 7, so it is not prime. That leaves numbers 31, 37, 41, 43, 47, so there are five prime numbers between 30 and 50.