Finding HCF Using Common Factors

Q.

Find the largest number which divides $70$ and$125$ leaves remainders $5$ and $8$ respectively.

Q. Find the HCF of the numbes 10, 12 and 15.

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

Q. Find the common factors of 8 and 12.

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

Q.

What is the HCF of $18,54,81$?

Q.

Find the HCF of $16\mathrm{and}20$.

Q. Find the HCF of 8, 9 and 10.

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

Q. All the prime numbers have HCF equals to 1.

1. True
2. False

Q. Find the highest number which divides 30, 45 and 60

1. 6
2. 60
3. 15
4. 30

Q. Find HCF of the numbers 18, 36 and 90.

1. 18

Q.

Find the HCF using prime factorisation method .

$224$ , $308$ and $330$

Q. What is the HCF of the first four prime numbes?

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

Q.

Find the HCF of the following numbers $34,102$

Q. What is the highest factor that can divide 200 and 20 completely?

1. 20
2. 10
3. 1
4. 5

Q.

Identify whether the following numbers are co-prime or not: $27,50,42$

Q. Find the HCF of the composite numbers 28 and 32.

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

Q.

What is the HCF of $8,9,25$?

Q.

Find the HCF by finding factors $9,6and15$.

Q. The largest factor of number 9 is

1. 4
2. 8
3. 9
4. 3

Q.

Using Prime Factorisation Method, determine the HCF of the numbers : $18,24$

Q. Find the highest common factor of the numbers 8, 24 and 36.

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

Q.

Using Prime Factorisation Method, determine the HCF of the numbers : $40and48$

Q. The HCF of first 6 multiples of 2 is _____ .

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

Q.

I can not understand HCF

Q. The HCF of 6 & 4 is

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

Q. What is/are the common factor/factors of 35 and 65?

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

Q. Find the HCF of 45 and 40.

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

Q.

HCF of 4 and 6

Q. The HCF of 120 and 150 is _____.

1. 10
2. 25
3. 50
4. 30

Q. Find the highest number which divides 24, 30 and 36.

1. 24
2. 3
3. 12
4. 6

Q. What is/are the common factor/factors of 35 and 65?

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