The answer is 75 now write it down and move on with life!!
15 30 45 60 75 90
60, 72, 84, 90 and 96 are the numbers up to and including 100 that have ten proper factors
15, 30, 45, 60, 75, 90
For 45 degrees, move along 100 mm and up 100 mm. For 30 degrees, move along 100 mm and up 58 mm. For 60 degrees move along 100 mm and up 188 mm.
15, 30, 45, 60, 75, 90
Any of the factors up to 60 can be common.
60, 72, 84, 90 and 96
Well, isn't that a happy little math problem! To find out what number we're looking for, we can set up a simple equation. If 75% of a number is 45, we can divide 45 by 0.75 to find the whole number. So, 45 divided by 0.75 equals 60. That's the number we're looking for!
Add them up. 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450
Up to 45 in the wild. In a zoo up to 60.
Any multiple of 60 is also a multiple of 15.