They are relatively prime.
No. 7 doesn't.
The numbers 2 and 3 are consecutive prime numbers. Are there other pairs of prime numbers which are consecutive numbers?
No. In similar triangles, the ratios of the 3 pairs of corresponding sides are always equal.
super duper swagg
Assuming the 36 numbers are all different, there are 36*35/2 = 630 pairs.
The factors of all numbers can be written in pairs. With square numbers, one of those pairs is the same number twice. When listed singly, square numbers have an odd number of factors. All others are even.
12 14
False. An enormous number of them are divisible by three.
The product of all pairs of prime numbers is always the least common multiple of the two prime numbers.
Yes, it is true.
6
Only two: (4, 9) and (6, 6). In all other factor pairs, one of the numbers is not composite.