The positive integers less than 11 are the natural numbers 1-10.
That is to say 1,2,3,4,5,6,7,8,9 and 10.
7 x 11 = 77 400/77 = 5.19.... ==> 5 integers
11. They are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, and 21.
2. That is the only one. And the 11 divisors are 2k where k = 0, 1, ,2, ... , 10
The numbers are 11, 13, 15 and 17.
11, 13, 15 and 17(143 is 112 less than 255)The equation is (A)(A+2) = (A+4)(A+6) - 112A2 + 2A = A2 +10A +24 -1122A = 10A - 888A = 88A = 112,5,6