0
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Ezra
CoachAdd your answer:
Earn +20 pts
How many integers between 100 and 500 are divisible by 6 but not 8?
There are (500-100)/2 = 200 numbers divisible by 2 between 100 and 500 counting 100 but not 500. Of these (500-100)/8 = 50 are divisible by 8. So there are 150 numbers between 100 and 500 divisible by two but not by 8. By relative primeness exactly 50 out of these 150 are divisible by 3 and therefore these 50 are exactly the ones divisible by 6 but not by 8.
How many prime numbers are there between 50 and 70?
The prime numbers between 50 and 70 are: 53 59 61 67 Therefore, there are four prime numbers between 50 and 70.
What is the sum of the prime numbers coming immediately before and after 50?
The prime number that is closest to 50 and smaller than it is 47 (check it, 48 and 49 are divisible by other numbers than 1 and themselves). The prime number that is closest to 50 and is bigger than it is 53 (51 and 52 are divisible by other numbers than 1 and themselves). Therefore: 47+53=100 100 is the answer.
What numbers are divisible by 511?
An infinite number of numbers are divisible by 511
Are all even numbers divisible by 6?
Not all even numbers are divisible by 6. These numbers are not evenly divisible by 6: Any number smaller than 6. Any number not divisible by 3. If a number is divisible by both 2 and 3, it is divisible by 6.
