How about: 8*9 = 72
99
9 x 8
17*2*114*12*72
Negative 2 and negative 36 multiplied together equal 72 -2 x -36 = 72 Remember when you multiply two negative numbers together you get a postivie number. Since 72 is an even number it has to be divisible by 2 so if you divide it by 2 the number you get (36) times 2 equals 72.
How about: 8*9 = 72
99
145
9 x 8
-66
3 x 3 x 8 equals 72
17*2*114*12*72
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
Negative 2 and negative 36 multiplied together equal 72 -2 x -36 = 72 Remember when you multiply two negative numbers together you get a postivie number. Since 72 is an even number it has to be divisible by 2 so if you divide it by 2 the number you get (36) times 2 equals 72.
36
72, 72, and 72.
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.