There are infinitely many possible answers.
Some examples:
1*129
10*12.9
10000*0.0129
5*25.8
-126
129
129
Here are a couple: - 258 x 2 -129 x 4 -86 x 3 -43 x 6 there are more, but you have to get into decimals.
129 * 106 = 13,674
146 multiplied by 129 = 18,834
129 multiplied by 122 is 15,738.
xy=-24 x+y=15 if y is not 0 x=24/y and y+24/y=15 y2+24=15y => y2-15y+24=0, delta = (-15)2 - 4 x 1 x 24 = 129 y = (-(-15)±sqrt(129)/(2 x 1) = (15±sqrt(129))/2 and then x = 24/y = 48/(15±sqrt(129)
When looking for factors, try out some small numbers, such as 2, 3, 5, 7. In this case, it is quite obvious that 129 is not divisible by 2. But if you continue trying, you see that it IS divisible by 3. Of course, if you divide 129 by 3, you get the other factor.
41,43,45 is the answer
43 * 3 = 129
These are all the whole numbers that go into 129 evenly: 1, 3, 43, 129.