6) 91 is a composite number because it's divisible by 7 and 13
7) 477 is divisible by 3 and 9, since the sum of its digits (18) is divisible by 3 and 9 ( or the sum is a multiple of 3 and 9) .Not divisible by 6
8) 348:is divisible by 4 because the last 2 digits (48) are a multiple of 4 348:is NOT divisible by 5 because the last digit is neither 5 nor 0 348:is divisible by 6 because it's divisible by 2 and also by 3
9) 23624 is divisible by 8 because te last 3 digits (624) are divisible y 8 (624/8 =78) None of the others are divisible by 8
10) A number is divisible by 6 IF IT'S DIVISIBLE BY 2 AND BY 3: 213 NO
468 is divisible by 2 since the last digit is divisible by 2. It's also divisible by 3 since the sum of its digits [18] is divisible by 3, hence 468 is divisible by 6
621 it's divisible by 3 but NOT by 2, then it's not divisible by 6
