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If a number is divisible by three you will know if all the digits of a number add up to a number divisible by three. Example: 1542 is your number, to find out if it is divisible by three you must add up the digits. 1+5+4+2=12. The number 12 is divisible by three(4x3) so therefore 1542 is divisible by three.

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โˆ™ 2009-11-08 21:41:15
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Q: A number is divisible by 3 if?
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What is the converse inverse and contrapositive If every digit of a number is divisible by 3 then the number is divisible by 3?

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.


Indentify the conclusion what conditional a number is divisible by 3 if the sum of the digits of the number is divisible by 3?

If the sum of the digits of a number is divisible by 3, then the number is divisible by 3.


What number is divisible by 6 but not 3?

There is no such number. Since 6 is divisible by 3, then any number that is divisible by 6 automatically has to be divisible by 3.


35 is a number divisible by 3 what number is?

35 is not divisible by 3.


Divisible by 3?

If the sum of the digits of a number is divisible by 3 ,then the number is divisible by 3.. is 36 is right


What is the converse of the sentence A number divisible by 9 is also divisible by 3?

If a number is not divisible by 3 then it is not divisible by 9.


What is the smallest digit number divisible by 3?

the number 3 is divisible by 3


Is every number that is divisible by 9 divisible by 3?

Yes, every number that's divisible by 9 is divisible by 3


If a number is even and divisible by 3 than what is true about that number?

If a number is even (divisible by 2) and divisible by 3, then it must also be divisible by 6.


Is 1 trillion 17 a prime number?

Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.


Can a number be divisible by 9 and 3?

Yes, any number divisible by 9 is also divisible by 3.


A number is divisible by 6 if and only if it is divisible by 3?

If this is a T-F question, the answer is false. It is true that if a number is divisible by 6, it also divisible by 3. This is true because 6 is divisible by 3. However, the converse -- If a number is divisible by 3, it is divisible by 6, is false. A counterexample is 15. 15 is divisible by 3, but not by 6. It becomes clearer if you split the question into its two parts. A number is divisible by 6 if it is divisible by 3? False. It must also be divisible by 2. A number is divisible by 6 only if it is divisible by 3? True.


If the number is divisible by 2 and 3 the whole number is divisible by?

It is divisible by 6


What numbers can be divided by 3?

The divisibility rule for 3 is as follows: If the sum of the digits of a number is divisible by 3 then the number is divisible by 3. For example, the number 21 is divisible by 3 since 2+1=3, and 3 is divisible by 3. The number 49 is not divisible by 3 since 4+9=13, and 13 is not divisible by 3.


What 2 digit numbers are divisible by 3 but not by 6?

Since 3 is a factor of 6, any number divisible by 6 is also divisible by 3. But since 2 is also a factor of 6, then any number divisible by 6 must also be divisible by 2. This means that any number divisible by 6 is an even number. So if a number is odd and it is divisible by 3, then it is not divisible by 6. For example, 12 is divisible by 3, but since it is even, it is also divisible by 6. But 15 is divisible by 3, and it is odd, so it is not divisible by 6.


A number is divisible by 3 if the sum of the digits of the number is divisible by 3?

Yes.


How do you know that a number is divisible by 15?

A number that is divisible by 15 is divisible both by 5 and 3 A number is divisible by 5 if it ends with 0 or 5 A number is divisible by 3 if the sum of its digits is divisible by 3 e.g. 4035 is divisible by 15 as it ends with a 5 and 4+0+3+5=12 which is divisible by 3


Is 3 divisible by 555?

A number cannot be divisible by a number larger than it. Hence, the answer is no, 3 is not divisible by 555.


How do you know if 3 goes into a number?

Add up the digits of the number. If the sum is divisible by 3, then the number itself is divisible by 3. Ex: Is 781 divisible by 3? 7+8+1=16 16 is not divisible by 3 so neither is 781 Is 903 divisible by 3? 9+0+3= 12 12 is divisible by 3 so 903 is divisible by 3


Is 3215 divisible by 3?

Not evenly. A number is divisible by 3 if the sum of its digits is divisible by 3.


Is 34215 divisible by 3?

Any number whose sum of its digits are equal to a multiple of 3, is divisible by 3. In this instance, the sum of the digits of the number 34215 is equal to 15, which is divisible by 3, and therefore the number is divisible by 3.


Is 8435 divisible by 3?

To determine if a number is divisible by 3, add all the digits. If the sum is divisible by 3, so is the number. 8+4+3+5 = 20, which is not divisible by 3 (not a multiple of 3). So, 8435 is not divisible by 3.


Is 423 a composite?

Yes, it is a composite number. It's divisible by 3. A quick way to tell if a number is divisible by 3 is to add up all the digits in the number. If their sum is divisible by 3, then the number is divisible by 3. For example, 4 + 2 + 3 = 9, and 9 is obviously divisible by 3. So, 423 must be divisible by 3. 423 divided by 3 is 141.


A number is divisible by 3 if the blank is divisible by 3?

A number is divisible by 3 if the sum of its digits is divisible by 3.


What is the rule for multiples of 6?

If a number is divisible by 2 (an even number) and 3 (the sum of the digits is divisible by 3) then the number is divisible by 6.

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