A number which is divisible by only itself and one is called a prime number. 2145 is not a prime number because it is divisible by 5. Remark: Any counting number ending with number 5(except 5 itself) is a composite number.
All numbers are divisible by 1.
Numbers are divisible by their factors. Multiples are divisible by their numbers.
Composite numbers are divisible by prime numbers.
The GCF is 3.
Prime numbers are divisible because any numbers that are divisible are prime. If a number isn't divisible, it isn't prime. Prime numbers have to be divisible by at least one pair of numbers to be prime.
The lists of numbers divisible by and not divisible by 600 are both infinite.
All numbers divisible by 2 are even numbers.
The numbers divisible by 3 are 3,6,9,12,15,18,21,24,27,30,33.....
No - but all the numbers divisible by 10 are divisible by 5 !
All whole numbers are divisible. If you mean divisible by numbers other than 1 and themselves, the answer is the set of composite numbers.
Yes; all numbers that are divisible by 9 are divisible by 3.