The greatest common factor of one and x is one. This is because the only number that can be multiplied to equal one is one and there is only one x. If you were factoring out the two numbers as an equation, it could be written as either 1(x+1) or x+1.
Chat with our AI personalities
If x>1 then the gcf is 15x. If x<1 then the gcf is 15.
Factor them. a x a x b b x b x c a x c x c No common factors. The GCF is 1.
The factors of 21 are 1 x 3 x 7 x 21.The factors of 28 are 1 x 2 x 4 x 7 x 14 x 28.The GCF of 21 and 28 is 7.
Prime factorization of: 195= 3 x 5 x 13 273= 3 x .....13 x 7 =============== GCF=3 x .....13 GCF=39
The GCF of 420 and 108 is 12. 2 x 2 x 7 x 5 x 3 3 x 3 x 3 x 2 x 2 2x2x3=12 GCF=12