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## More Questions on This Topic :

- 4, 38
- 6, 52
- 8, 96
- 5, 33

**Answer: Option C**

: C

When 38 is divided by 4, the remainder is 2. So, 4 is not a factor of 38.

When 52 is divided by 6, the remainder is 4. So, 6 is not a factor of 52.

When 33 is divided by 5, the remainder is 3. So, 5 is not a factor of 33.

When 96 is divided by 8 the remainder is 0. So, 8 is a factor of 96.

**The ___ of two or more numbers is the least number which is exactly divisible by those numbers.**

__Question 2.__: The LCM of two or more numbers is the least number whichis exactly divisible by those numbers. Example: LCM of 4 and 6 is 12. So, 12 is the least number which is exactly divisible by 4 and 6.

: Prime numbers are numbers which are divisible by1 and the "number itself", So, 3 is a prime number as it is divisible by only 1 and 3. 99 is not a prime number as it is divisible by 1, 9, 11, 99. 98 is also not a prime number as it is divisible by 1, 2, 7, 49, 98. The largest 2-digit prime number is 97, as it is divisible only by 1 and 97.

- 8
- 12
- 9
- 36

**Answer: Option B**

: B

The smallest number divisible by any 2 or more numbers istheir least common multiple (LCM).

The multiples of 2 : 2 , 4 , 6 , 8 , 10 , 12 , 14 .....

The multiples of 4: 4 , 8 , 12 , 16 , 20 ......

The multiples of 6: 6 , 12 , 18 , 24 .........

As you can see, 12 is the smallest multiple that is commom for all 3 numbers.

So, the LCM of 2, 4, 6 =

**12**

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