Why is 2 in the ones place of every composite number?

The assertion that 2 is in the ones place of every composite number is incorrect. A composite number is defined as a positive integer greater than one that is not prime, meaning it has divisors other than 1 and itself. Composite numbers can end in any digit, including 0, 1, 3, 4, 5, 6, 7, 8, or 9. For example, 4, 6, 8, 9, and 10 are all composite numbers but do not have 2 in the ones place.