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Q: If every digit of a number is dividable by 3 then the number itself is divisible by 3?

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Yes.

They all are.

Converse:If a number is divisible by 3, then every number of a digit is divisible by three. Inverse: If every digit of a number is not divisible by 3 then the number is not divisible by 3? Contrapositive:If a number is not divisible by 3, then every number of a digit is not divisible by three.

999 is divisible by 9, but not by six; the next lower number divisible by 9 is 990, which is also divisible by 6, so that's the answer. Some shortcuts for divisibility: 0 is divisible by any number. If the last digit of a number is divisible by 2, the number itself is divisible by 2. If the sum of the digits of a number is divisible by 3, the number itself is divisible by 3. If the last TWO digits of a number are divisible by 4, the number itself is divisible by 4. If the last digit of a number is divisible by 5, the number itself is divisible by 5. If a number is divisible by both 2 and 3, it is divisible by 6. If the last THREE digits of a number are divisible by 8, the number itself is divisible by 8. If the sum of the digits of a number is divisible by 9, the number itself is divisible by 9. 990: 9+9+0=18, which is divisible by 9, so 990 is divisible by 9. 18 is also divisible by 3, so 990 is divisible by 3, and since 990 ends in 0 it's also divisible by 2, meaning that it's divisible by 6 as well.

a 3 digit number that is divisible by on is a three digit number that is a multiple of one.

If the units digit is a five or a zero, then the number may be evenly divided by five. (Zero itself exempted.)

There is no 5 digit number which is divisible by 23456910 (an 8-digit number)..

The only 3-digit number that is divisible by 624 is 624.

The lowest 4-digit number that is divisible by 6 is 1002

1080

There is no number that is divisible by only 6 and 9 because any number is divisible by 1 and itself. Furthermore, any number that is divisible by 6 MUST be divisible by 2 as well as 3 - so only 6 is impossible.

Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.Any number that ends with the digit 5 is divisible by 5.

There is no 4-digit number that is divisible by 2356 and 10.

2,4,6,8,and 0 are divisible by 2 in the ones digit. Zero is only divisible in a number with 2 digits or more. 0 itself is not divisible by 2.

A three digit number cannot be divisible by a 5 digit number - in any base.

98 is the largest two digit number divisible by 7.

12 is the smallest 2 digit number divisible evenly by 4

There is no 4-digit number that is divisible by zero.

1002 is the smallest 4 digit number divisible by 3 and 2.

3 and 9. 93 has a digit sum of 12, initially, which is divisible by 3, but not by 9. So 93 is divisible by 3, but not by 9. 99 has a digit sum of 18, initially, which is divisible by 3 and 9. So 99 is divisible by both 3 and 9.

A number is divisible by 2 if it is an even number. That is, if the last digit is divisible by 2.

If the last digit is a zero, the number is divisible by 10.

the number 3 is divisible by 3

no

The largest two odd digit number divisible by 7 is 91.