Introduction to Divisibility and Its Meaning

Q.

If two given numbers are divisible by a number, then their ____ is/are also divisible by that number.

1. Sum

2. Product

3. Difference

4. sum, difference and product

Q. If a number is divisible by 90, it is also divisible by:

1. 45
2. 7
3. 11
4. 12

Q.

L.C.M of the $1$and the two-digit natural number is ………….. .

Q. Which of the following is a multiple of both 12 and 6?

1. 30
2. 18
3. 48
4. 42

Q.

Common multiples of 4, 5 and 11 are _________.

1. 220, 221 and 222

2. 220, 440 and 660

3. 210, 220 and 240

4. 200, 210 and 220

Q.

How many numbers are there having exactly one factor?

Q.

Given that 312 is divisible by 26. It will also be divisible by ________.

1. 9

2. 11

3. 7

4. 13

Q.

List out the factors of $36$.

Q.

Write all the factors of the following number.

$105$

Q.

Mark the option which contains set of prime numbers.

1. 1, 2, 3, 5, 7

2. 2, 5, 9, 11, 17

3. 19, 13, 11, 7, 3

4. 23, 29, 39, 37, 43

Q.

Given that 312 is divisible by 26. It will also be divisible by ________.

1. 11

2. 9

3. 7

4. 13

Q. If a number is divisible by 10, then it must also be divisible by 2. State true or false.

1. False
2. True

Q. 12 is a common multiple of 2, 3 and 6.

1. False
2. True

Q. Pair the following as per divisibility rules.

1. last 3 digits
2. last 2 digits
3. units digit
4. sum of digits

Q. The difference of 954 and 459 is exactly divisible by 99.

1. True
2. False

Q.

If a number is divisible by 3 and 5, it is also divisible by __.

1. 12

2. 10

3. 9

4. 15

Q. Which is the common factor of 20 and 25?

1. 5
2. 4
3. 3
4. 7

Q. If a number is divisible by 3 and 4, then it is also divisible by 12.

1. False
2. True