Common Factor

Q. Find the pair in which the second number is the factor of the first number.

1. 5, 2
2. 8, 3
3. 12, 5
4. 9, 3

Q.

Question 5 (d)

Which of the following numbers are co-prime:
17 and 68

Q. Which of the following is a factor of 8 but not a factor of 12?

1. 4
2. 8
3. 6
4. 2

Q.

Find the common factors of $81$ and $16$.

Q.

What are common factors and how to find common factors ?

Q. Find all the common factors of the numbers 6, 12 and 15.

1. 2 and 3
2. 1 and 2
3. 1 and 3
4. 1, 3 and 6

Q. Which of the following numbers is a common factor for all numbers?

1. 1
2. 0
3. 10
4. 2

Q.

Find the common factors of:

(a) 20 and 28 (b) 15 and 25

(c) 35 and 50 (d) 56 and 120

Q. Three numbers are 4, 16 and 24. Which of the following is one of the common factors?

1. 3
2. 5
3. 8
4. 4

Q. Find the common factor of the numbers 5 and 15 leaving 1.

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

Q.

Find the common factors of $8$ and $20$.

Q. Which of the following is the complete list of common factors of the numbers 12 and 18?

1. 1
2. 2
3. 1, 2, 4
4. 1, 2

Q. Which is one of the common factors of the numbers 12 and 24?

1. 24
2. 12
3. 5
4. 8

Q. Alex has to split 8 balls into different groups with equal number of balls in each group. In how many ways can he form these groups?

1. 4

Q. Find all the even common factors of 16 and 20.

1. 1, 2 and 4
2. 2 and 6
3. 4 and 5
4. 2 and 4

Q. Two numbers have comon factors 2 and 4. Find the possible combination of the two numbers.

1. 6 and 10
2. 4 and 8
3. 6 and 8
4. 4 and 10

Q. Count the number of common factors of 12 and 18.

1. 4
2. 2
3. 3
4. 1

Q.

Find the common factors of:

(a) 4, 8 and 12 (b) 5, 15 and 25

Q.

Which of the following numbers has both 2 and 5 as factors?

1. 

2. 

3. 

4. 

Q.

Which of the following is a factor of 90 but not a factor of 75?

1. 

2. 

3. 

4. 

Q. When 165798 is divided by 10, find the remainder.

1. 9
2. 7
3. 8
4. 5

Q. When 165798 is divided by 10, find the remainder.

1. 5
2. 7
3. 9
4. 8

Q.

Writes the factors of $120$.

Q.

___ and ___ are factors of $28$.

1. $4,7$
2. $2,9$
3. $3,7$
4. $4,6$

Q. In which of the following cases, is the first number a factor of the second number?

1. 6, 52
2. 8, 96
3. 5, 33
4. 4, 38

Q. When 65 is divided by 7 then the remainder is 2.

1. True
2. False

Q. Meaning of factor

Q. The largest number which is a factor of 66, 110 is

1. 22
2. 2
3. 11
4. none of these

Q.

Which of the following is a factor of 15 but not a factor of 12?

1. 

2. 

3. 

4. 

Q. When 274 is divided by 100, 47 is the remainder.

1. False
2. True