Which of the following expressions are equivalent to LCM(a,b,c)\text{LCM}(a, b, c)LCM(a,b,c)?
abcGCD(a,b)⋅GCD(b,c)⋅GCD(a,c)\frac{abc}{\text{GCD}(a, b) \cdot \text{GCD}(b, c) \cdot \text{GCD}(a, c)}GCD(a,b)⋅GCD(b,c)⋅GCD(a,c)abc
abc⋅GCD(a,b,c)GCD(a,b)⋅GCD(b,c)⋅GCD(a,c)\frac{abc \cdot \text{GCD}(a, b, c)}{\text{GCD}(a, b) \cdot \text{GCD}(b, c) \cdot \text{GCD}(a, c)}GCD(a,b)⋅GCD(b,c)⋅GCD(a,c)abc⋅GCD(a,b,c)
LCM(LCM(a,b),c)\text{LCM}(\text{LCM}(a, b), c)LCM(LCM(a,b),c)
a⋅b⋅cGCD(a,b,c)2\frac{a \cdot b \cdot c}{\text{GCD}(a, b, c)^2}GCD(a,b,c)2a⋅b⋅c