Q3 of 57 Page 31

The HCF (Highest Common Factor) of 95 and 152 is :

The numbers can be expressed as follows:

95 = 5 × 19

152 = 2 × 2 × 2 × 19

So for finding the HCF we may write as follows:

Common Factor Least Power

19 1

So HCF = 19

So correct answer is B.

The sum of the powers of the prime factors of 196 is:

If two numbers are written in the form of m = pq³ and n = p³q² then find the HCF of m, n when p, q are prime numbers:

The product of two numbers is 1080. Their HCF is 30. Then their LCM is:

The decimal expansion of the number will be:

Questions · 57

2. Real Numbers

1 2 3 4 4 4 4 4 4 5 1 1 1 1 1 2 2 2 3 3 3 3 3 3 4 5 1 2 2 2 3 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 19 19 19 20