531 is one of them and that any 3 digit number whose digital sum is 9 is also divisible by 9
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No odd numbers are divisible by even numbers.
All numbers are divisible by 1. So, apart from the number 1, all numbers are divisible by another number. These numbers are therefore prime or composite.
All numbers are divisible.
a number that is divisible by more than 2 numbers is a composite number
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.