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The numbers that have a factor of 11 are options:
The factors of a number are those numbers that can divide it without leaving a remainder or doesn't have a decimal point, and the quotient is a whole number.
Lets divide the given numbers and let's see if the result is a whole number:
[tex] \boxed {\begin{array}{lcl}\rm \underline{Option \: A} \\\: \: \: \rightarrow \: 1291 \div 11 = 117 \\ \\\rm \underline{Option \: B} \\\: \: \: \rightarrow \: 1456 \div 11 \approx 132.36 \\\\\rm \underline{Option \: C} \\\: \: \: \rightarrow \: 2090 \div 11 = 190 \\\\\rm \underline{Option \: D} \\\: \: \: \rightarrow \: 2513 \div 11 \approx 228.45\end{array}}[/tex]
The options that are exactly divisible by 11 are a and c.