Why 2 * 3 * 5 5 and 5 * 7 * 11 7 * 5 are composite numbers?

Could you please clarify the question? It seems like there might be a misunderstanding in the way the numbers are presented. However, I'll try to address the question based on the general idea of composite numbers. Composite numbers are numbers that have more than two distinct positive divisors, meaning they can be expressed as a product of two or more prime numbers. The numbers you've mentioned, 2*3*5 and 5*7*11, are in fact the products of prime numbers, which makes them composite. For example, 2*3*5 equals 30, and 30 has divisors other than 1 and itself, such as 2, 3, 5, 6, 10, 15, and 30. Similarly, 5*7*11 equals 385, and 385 also has divisors other than 1 and itself, confirming that both are composite numbers. It's worth noting that the expressions "5 5" and "7 * 5" in your question seem to be typos or misunderstandings, as they do not directly relate to the concept of composite numbers in the way you've presented them. Could you please clarify if you meant something specific with those expressions?