Finding HCF Using Common Factors

Q. Which of the following is the common factor of 16 and 24?

1. 3
2. 6
3. 8
4. 12

Q.

Find the greatest number which divides 87 and 97 leaving remainder 7 in each case.

Q.

Find the HCF of two co-prime numbers.

Q.

Find the HCF of $25$ and $30$

Q.

Find the HCF of the following numbers: $13,65,117$.

Q.

Find the HCF of the following numbers: $38,57,114$.

Q.

Find the greatest number which divides $285$ and $1,249$, leaving remainders $9$ and $7$ respectively.

Q. ___ is a pair of co-prime numbers.

1. 12, 15
2. 7, 15
3. 22, 48
4. 24, 36

Q.

Check whether 21 and 25 are co- prime or not

Q. H.C.F of 45, 81 and 27 is _____.

1. 1

2. 9

3. 27

4. 45

Q.

What is the HCF of two even consecutive numbers.

Q.

What is the greatest number which divides 134 and 167 leaving 2 as the remainder in each case?

1. 34

2. 37

3. 39

4. 33

Q. Choose one of the common factors of 9 and 14 from the given options.

1. 1
2. 3
3. 9
4. 11

Q. Two water tanks contain 250 and 400 litres of water respectively. What will be the maximum capacity of a bucket that can exactly measure the water in the two tanks?

1. 40 litres
2. 80 litres
3. 20 litres
4. 50 litres