Total number of positive integers `x` for which `f(x)=x^3-8x^2+20 x-13` is a prime number, is 1 (b) 2 (c) 3 (d) 4

Number of positive integers x for which f(x)=x^(3)-8x^(2)+20x-13 is a prime number is

Total number of positive integers x for which f(x)=x^(3)-8x^(2)+20x-13 is a prime number,is 1( b) 2(c)3 (d) 4

Total number of positive integers x for which f(x)=x^(3)-8x^(2)+20x-13 is prime number,is 1 b.2 c.3 d.4

Find the number of positive integers x for which f(X)=x^(3)-8x^(2)+20x-13, is a prime number.

If the positive integral values of x for which f(x)=x^(3)-8x^(2)+20x-13 is a prime are alpha,beta,gamma then

The number of pairs of positive integers (x,y) where x and y are prime numbers and x^(2)-2y^(2)=1 , is

The number of pairs of positive integers (x,y) where x and y are prime numbers and x^(2)-2y^(2)=1 , is

The number of positive integral solutions of,(x^(2)(3x-4)^(3)(x-2)^(4))/((x-5)^(2)*(2x-7)^(6))<=0 is 1 (b) 2 (c) 3 (d) 4

If a and b are positive integers such that a=x^3y^2 and b=xy^3 ,where x,y are prime number then HCF (a,b) is

If two positive integers a and b are written as a=x^(3)y^(2) and b=xy^(3);x,y are prime numbers then HCF(a,b) is (a) xy (b) xy^(2) (c) x^(3)y^(3) (d) x^(2)y^(2)