1, 3, 9, 27, 81
As a product of its prime factors: 3*5*23 = 345
1, 2, 4, 5, 10, 20, 25, 50, 100.
1 x 10, 2 x 5, 5 x 2, 10 x 1
Usually when you say common factors, you are comparing the factors of two different numbers. Since you have only one number, you could just say, "What are the factors for 24?" You could leave out the word, "common". The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24.
they are 1,19
28,1,14,2,7,4
1,2,3,4,6,8,12,24
1 and 13 that's it
No.
3 and 107
26, 1, 13, 2,6
Composite
Its factors are: 1, 11, 101 and 1111
1, 3, 9, 27, 81
1 x 17 17 is a prime number.
5 is the only prime factor of 25.