The conversation between human and AI assistant.
A no divisible by both 3 and 14?
Okay, what about bigger numbers? Is there a way to quickly check if a large number is not divisible by both 3 and 14?
Yes, you can use the rule that a number is not divisible by 3 if the sum of its digits is not divisible by 3. And similarly, a number is not divisible by 14 if it is not divisible by 2 and 7. So, you can apply those rules to determine if a larger number is not divisible by both 3 and 14.