67 and 5
72 = 36 + 36
How about: 8*9 = 72
54 and 72 are divisible by 2,3.
99
67 and 5
2 and 3: 72 = 2 x 2 x 2 x 3 x 3
72 = 36 + 36
How about: 8*9 = 72
54 and 72 are divisible by 2,3.
When the two numbers are coprime. Coprime numbers need not be prime numbers - they must not have any factor in common (other than 1). So, for eaxmple, neither 8 nor 9 are prime numbers but they are coprime and so, LCM(8 , 9) = 72
67 and 5
145
99
The Fundamental Theorem of Arithmetic states that every number has exactly one, unique factorization of potentially non-unique prime numbers. Since the prime factorization of 72 is 2*2*2*3*3, we conclude that 72 is coprime with all other prime numbers, so there is no solution.
Not sure about 720 but if the answer were to be 72 then the two numbers are 8 and 9 8 x 9 = 72 8 + 9 = 17
42