Rule of 12: If you add all the digits and the result is divisible by both 3 and 4
648 (6+4+8=18 and 18÷3=6, also 48÷4=12) Yes
916 (9+1+6=16, 16÷3= 5 1/3) No
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It is only divisible by itself and one so therefore 37 is a prime number
Apply for the rules of 3 and 8. Numbers are divisible by 24 only if they are divisible by both 3 and 8.
There is no specific rule of "12 and 52".
no i csn not thats why im asking the computer,...
12 second rule