2,5,10,x
4xy
2(10XY) 5(2XY) 4(5XY) 22(5XY) and so on, though not very interesting factoring
2 * 2 * 5 * x * y
35
(2x - 3y)(2x - 7y)
The prime factorization of 20xy is 22x5xxxy
5xy (2x - 3y + 4 )
It is an algebraic expression
2 times 2 times 5 times x times y = 20xy
9
0.4444