212, 106, 100, 53, 25, 20 and 4 are all factors of 5300
The factors of 21 that add up to 8 are 1 and 7.
factors of 30 that add to 17 are 2 and 15
15 and 4 are the factors of 120 that add up to 19.
115
Add them up. The factors of 9 are 1, 3 and 9. The sum of the factors is 13.
The factors of 21 that add up to 8 are 1 and 7.
None. Factors don't add, they multiply.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
167
-1005
268
factors of 30 that add to 17 are 2 and 15
The internal angles add up to 360 degrees. If the trapezium has its base parallel to the top then the internal angles on the left of the parallel lines add to 180 degrees, the angles on the right add to 180 degrees.
47
1012
1510