5 x 65 13 x 25
-17
1, 5, 13
65 x 300 / 2 = 9750
1 x 130, 2 x 65, 5 x 26, 10 x 13
1 x 65, 5 x 13, 13 x 5, 65 x 1
any 2 numbers can be multiplied together. eg. 2x1 is 2. 5x91000 is 455000
1 x 195, 3 x 65, 5 x 39, 13 x 15
The numbers that go into 130 are the numbers that divide 130 evenly without leaving a remainder. These numbers are 1, 2, 5, 10, 13, 26, 65, and 130. This is because these numbers can be multiplied by another number to equal 130.
These pairs of numbers, when multiplied, equal 195: (1, 195) (3, 65) (5, 39) (13, 15)
-57
It can't be done with whole numbers....but if you want decimals....these two will work 3.7731879764631448414184572689148 17.226812023536855158581542731085