What is the greatest common factor of the following lists of numbers?
$19,57$

Factor the GCF from the polynomial.

$18x^3{y}^2-27x^2{y}^3+9x^{4}y$

Use grouping to factor out the polynomial.

$xy+2x+3y+6$

Use grouping to factor out the polynomial.

$2ab+4a+3b^2+6b$

What is the greatest common factor of the following lists of numbers?

$42,70,98$

What is the greatest common factor of the following sets of monomials?

$6x,9x^2,15x^3$

What is the greatest common factor of the following sets of monomials?

$30m^3{n}^2,45m^2{n}^4,75m^4{n}^3$

Factor the GCF out of:

$8x+12$

Factor the GCF out of:

$6x^2+9x$