There are three:
99 = 1 x 99
99 = 3 x 33
99 = 9 x 11
99 = 1 x 99, 3 x 33, 9 x 11, 11 x 9, 33 x 3, 99 x 1
3x33
9x11
1 x 95 and 5 x 19
There are 3 factor pairs of 99.99 = 1 x 9999 = 3 x 3399 = 9 x 11
297 and 1 99 and 3 33 and 9 27 and 11
164,182,241,4
1 x 61 is the only factor pair of 61.
The greatest factor of 99 is itself, which is 99. The greatest factor of any integer is the integer itself.
There are 3 factor pairs of 99.99 = 1 x 9999 = 3 x 3399 = 9 x 11
1x40, 2x20, 4x10, 5x8 are all the factor pairs of 40.
The factor pairs of 20 are: 20,1 / 10,2 / 5,4
The factor pairs for 38 are (1, 19) and (2, 38).
The factor pairs of 26 are: 1 × 26 2 × 13
297 and 1 99 and 3 33 and 9 27 and 11
9 x 121 3 x 363 99 x 11
53,1
1,3,149,447
612,1306,2204,3153,4102,668,951,1236,1734,18
57,119,3
They are:165,155,333,515,11