What is the similarity between numbers; 85,17,19,4 and 2

The correct answer for the question that is being presented above is this one: "They are all divisors of 6460."

I guess it asks for the Least Common Multiple (LCM) of these numbers.

85= 5*17
17=17
19=19
4=2^(2)
2=2
LCM(85,17,19,4,2)= 5* 17* 19* 2^(2)= 6460.
Conclusion: They are all divisors of 6460.

The answer would be c

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