So I just have a simple question, I was looking for the GCF of 99, 110, and 825 using prime factorization. I got these as answers: prime factors:
• The prime factors of 99 are: 3, 3, 11
The prime factors of 110 are: 2, 5, 11
• The prime factors of 825 are: 3, 5, 5, 11

It told me the GCF was 11 because It was the product of all common prime factors. But isn’t 3 and 5 also common prime factors? They are prime numbers and there is also more than 1 of them like 11. Am I missing something?