Only itself and one because 61 is a Prime number
1 x 61 is the only factor pair of 61.
1 and 61
1 x 61, 61 x 1
Itself and one because 61 is a prime number
The factor pairs of 122 are 1 x 122 and 2 x 61
1x40, 2x20, 4x10, 5x8 are all the factor pairs of 40.
The factor pairs for 38 are (1, 19) and (2, 38).
The factor pairs of 26 are: 1 × 26 2 × 13
1 and 61
The factor pairs of 20 are pairs of numbers that can be multiplied together to give 20. The factor pairs of 20 are (1, 20), (2, 10), and (4, 5). These pairs represent all the possible combinations of numbers that can be multiplied to equal 20.
They are:165,155,333,515,11
1,81,3,27,9