Respuesta :

mergl
4 is the only factor common among all terms

Answer:  First option is correct.

Step-by-step explanation:

Since we have given that

[tex]16s^3t,40s^5\ and\ 68t^2[/tex]

First we write the factors of all of these numbers:

Factors of [tex]16s^3t[/tex] is given by

[tex]4\times 4\times s\times s\times s\times t[/tex]

Factors of [tex]40s^5[/tex] is given by

[tex]2\times 2\times 2\times 5\times s\times s\times s\times s\times s[/tex]

Factors of [tex]68t^2[/tex] is given by

[tex]17\times 2\times 2\times t\times t[/tex]

So, GCF ( Greatest common factor) will be

[tex]2\times 2=4[/tex]

Hence, First option is correct.