In order to find the number of divisors we need to consider the powers of prime factors; we just add 1 to each power and we multiply them; i.e.
(2+1)x(2+1) = 3 x 3 = 9 gives the number of divisors since the number 36 = 22 x 32.
Find the divisors of 36 and choose the ones having ...
This is a question asked in a mathematical competition. We hardened it a little bit. Congrats to who are able to solve .
The product of GCD and LCM should be the product of the numbers in question. So the elapsed times should be divisors of 36. These are given, the propers
are given, in the answer to question 5.
The case of 1 and 36 is not very likley but it does not change the answer. Have a look at ry1.