If` A = 2n +13, B = n +7`, where n is a natural number then HCF of A and B is

The sum of the digits of a natural number (10^(n)-1) is 4707, where n is a natural number.The value of n is 477 (b) 523 (c) 532 (d) 704

The largest number that exactly divides each number of the form n^3 - n , where n is a natural number , is :

If a^(2)-b^(2)=13 where a and b are natural numbers,then value of a is

If n=2^3xx3^4xx5^4xx7 , where n is a natural number, then find the number of consecutive zeros in n

What would be the digit in the 10th place of 7^n where 'n' is a natural number greater than 1 ?

a,b are postive reals such that (1)/(a)+(1)/(b)=(1)/(a+b) if ((a)/(b))^(3)+((b)/(a))^(3)=2sqrt(n) where n is a natural number the value of n is

If a and b are positive integers such that N=(a+ib)^(3)-107i (where N is a natural number), then the value of a is equal to (where i^(2)=-1 )

If A={5^(n)-4n-1:n in N} and B={16(n-1):n in N}, wher N is the set of natural numbers,then A uu B is equal to

If A = {4n+ 2| n is a natural number} and B = {3n|n is a natural number}, then what is (A nn B) equal to?