1 x 16
2 x 8 ______
4 x 4 16!
8 x 2 ______
16 x 1
Sixteen factor pairs.
21,1 and 7,3
1,18 2,9 3,6
(63,1)(21,3)(9,7)
Sixteen factors.
Sixteen factors
Sixteen factors.
Sixteen factors.
All numbers have factors. It is possible to list them as pairs. The factors of 12 are 1, 2, 3, 4, 6 and 12. The factor pairs of 12 are (12,1)(6,2)(4,3)
The factor pairs of 950 are: 950,1 / 475,2 / 190,5 / 95,10 / 50,19 / 38,25
The factors of all numbers can be written in pairs. With square numbers, one of those pairs is the same number twice. When listed singly, square numbers have an odd number of factors. All others are even.
(54,1)(27,2)(18,3)(9,6)