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# How do you find out if a number is a multiple of 3?

Updated: 4/28/2022

Wiki User

13y ago

you add up the digits, and if the sum is a multiple of 3, then the number is divisible by 3!

Wiki User

13y ago

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Q: How do you find out if a number is a multiple of 3?
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### How do you find out what is divisible by 3?

Add up the digits in the number. If the total is a multiple of 3, the entire number will be a multiple of 3.

### Is 4339 divisible by 3?

No. To find if a number is a factor of 3, add the number's digits. If the resulting number is a multiple of 3, then the original number is a multiple of 3. In 4339, the digits of the number added together is 19, which is not a multiple of 3.

### How do you find a multiple?

A multiple of a number is something you get when you multiply that number by another. For instance, 5 x 2 = 10, so 10 is a MULTIPLE of 5 and a MULTIPLE of 2. If you're trying to find a multiple of a number, say, 3, multiply that number by another. It can be any number.

### What is the least common multiple of 3 and?

It would help to have that other number. If the other number is a multiple of 3, the LCM is that number. If it is not a multiple of 3, the LCM is 3 times that number.

### What is the multiple of three out of these numbers 285770126176410452650?

I'll guess those are three-digit numbers. The way to find if a number is a multiple of 3 is to total its digits. If that total is a multiple of 3, the whole number is a multiple of 3. 285 and 126, yes. 770, 176, 410, 452, 650, no.

### Is 92 a multiple of 3?

No, 92 is not a multiple of 3. A quick way to check if a number is a multiple of 3 is: add up the digits of the number you are checking; if this sum equals 3 or a multiple of 3, then the number is a multiple of 3. So in this case, 92 --&gt; 9+2=11, which is not a multiple of 3. If you have to you can add again, so for 11 --&gt; 1+1=2, which is not a multiple of 3. You can always repetitively add until you get to a single digit answer: if it's 3,6 or 9 then it's a multiple of 3. Also if your sum is 9 or a multiple of 9, then the original number is a multiple of 9. To check for 6, if a number is a multiple of 3, and also a multiple of 2 (an even number), then the number is a multiple of 6.

### How do you find out if a number is divisible by three?

Add up the digits. If that total is a multiple of 3, so is the original number.

### Which number is a common multiple of 2 and 3?

The least common multiple of the numbers 2 and 3 is 6.

### How do you decide if a two digit number is a multiple of a one-digit number?

If the number is even, it is a multiple of 2 If the sum of the digits make a number divisible by 3, the number is a multiple of 3 If the number ends in 5 or 0, the number is a multiple of 5 If the number is divisible by 2 and 3, the number is a multiple of 6 If the sum of the digits make a number divisible by 9, the number is a multiple of 9

### Which number is a multiple of 3 and 6?

Any multiple of 6 is a multiple of 3 and 6.

### What is the smallest number that is a factor 66 and a multiple of 3?

3 is the smallest number that is a factor 66 and a multiple of 3

### What number is 9 a multiple of?

9 is a multiple of 3. It is 3 x 3.