Just 1.
These are all the whole numbers that go into 129 evenly: 1, 3, 43, 129.
Each of these numbers goes evenly into 86: 1, 2, 43, 86.
43 is a prime number, only 1 and 43 can go into it
1 and 43
Itself because 43 is a prime number
43, 86, 129, 172, 215, 258, 301, 344 +43 . . .
They are 1 and 43 because it's a prime number.
Just 1.
3 43
These are the whole numbers that go into 301 evenly: 1, 7, 43, 301.
These are all the whole numbers that go into 129 evenly: 1, 3, 43, 129.
They are 1, 13, 43 and 559.
1, 2, 43, 86.
Each of these numbers goes evenly into 86: 1, 2, 43, 86.
It is a prime number and its factors are 43 and 1
43 = XLIII