The total number of factors of a prime number is:

The HCF and the LCM of 12, 21, 15 respectively are:

The decimal representation of $\frac{11}{2^3\times 5}\backslash frac\{11\}\{2^3\backslash times5\}$ will:

The LCM of smallest two-digit composite number and smallest composite number is:

$7\times 11\times 13\times 15+157\backslash times11\backslash times13\backslash times15+15$ is a:

1.23451326.... is:

If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a =

The product of a non-zero rational and an irrational number is:

The sum of exponents of prime factors in the prime factorisation of 196 is

The HCF of 135 and 225 is

The decimal representation of $\frac{37}{50}\backslash frac\{37\}\{50\}$ will

The largest number which divides 70 and 125 leaving remainders 5 and 8 respecively is

The least number that is divisible by all the integers from 1 to 5 is

Which of these rational number is a terminating decimal?

The pair of co-primes is