Find the GCD for the following `:`
`9a^(2) b^(2) c^(3) , 15a^(3) b^(2) c^(4)`

Find the GCD for the following : ab^(2) c^(3) , a^(2) b^(3) c, a^(3) bc^(2)

Find the GCD of the following : 3a^(2) , 5b^(3) , 7c^(4)

Find the GCD of the following : a^(3) - 9ax^(2) , ( a - 3x)^(2)

Find the GCD for the following: (i) p^(5),p^(11) ,p^(9) (ii) 4x^(3) , y^(3) , z^(3) (iii) 9a^(2) b^(2) c^(3) , 15a^(3) b^(2) c^(4) (iv) 64x^(8) , 240 x^(6) (v) ab^(2) c^(3) , a^(2) b^(3) c,a^(3) bc^(2) (vi) 35x^(5) y^(3) z^(4) , 49x^(2) yz^(3), 14xy^(2) z^(2) (vii) 25ab^(3) c, 100a^(2) bc , 125 ab (viii) 3abc,5xyz, 7pqr

Find the H.C.F. of the following : -9a^3b^3,6ab^2,12a^3b^2 .