Any of 39's factors can be common.
Three of them.
To find the common factors of 123 and 555, we first need to determine the factors of each number. The factors of 123 are 1, 3, 41, and 123. The factors of 555 are 1, 3, 5, 15, 37, 111, and 555. The common factors of 123 and 555 are 1 and 3. Therefore, they have 2 common factors.
Eight factors.
Five factors.
37 has two factors
1000000
6
it has 4 factors
The factors of 121 are: 1, 11, 121
the least of what you should take
Four factors.