between 1 and 600 inclusive there are:300 numbers divisible by 2200 numbers divisible by 3100 numbers divisible by both 2 and 3400 numbers divisible by 2 or 3.
There are 233 numbers between 1 and 700 that are divisible by three.
There are 29 numbers between 1 and 150 that are divisible by five.
There are 89 numbers between 1 and 180 that are divisible by two.
There are 66 numbers between 1 and 1,000 that are divisible by 15.
Prime numbers are by definition only divisible by 1 and itself.
Only 1 and 23.
No prime numbers are divisible by 250. A prime number is only divisible by 1 and itself.
842 is NOT divisible by nine. It is only divisible by these numbers: 1 2 421 and 842.
Prime numbers
Prime numbers are only divisible by 1 and themselves. So, a prime number cannot be divisible by 10. The only prime number that is divisible by 2 is 2 itself; all other numbers divisible by 2 are not prime numbers.
In contrast, no prime numbers are divisible by 10. Any prime number is divisible only by itself and 1.
61 is prime because it is only divisible by 1 and 61 (aka itself). Prime numbers are numbers that are only divisible by 1 and itself. Their only factors are 1 and itself. This is the case with 61.
Composite numbers are numbers which are divisible by another number other than 1 and the number itself. Ex 1: 15 is divisible by 1, 3, 5 and 15. So, 15 is a composite number. Ex 2: 3 is divisible by 1 and 3 only. So, such numbers which are only divisible by 1 and the number itself are known as Prime numbers.
All numbers are divisible by 1.
PRIME
Coprime numbers are those in which only 1 and that number (say 5) can be divisible by it. Both 5 and 7 would be coprime numbers because they are numbers divisible by only themselves and 1.