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MATH / For how many different digits n is the two-digit number underline{6}underline{n} divisible by n? (The expression underline{6}underline{n} should be interpreted as a two-digit integ…

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problem

For how many different digits nn is the two-digit number $\underline{6}\underline{n}$ divisible by nn? (The expression $\underline{6}\underline{n}$ should be interpreted as a two-digit integer with tens digit 6 and units digit nn, not as 6 times nn.)
Plain-text mathematical notation (without MathML)
For how many different digits n is the two-digit number $\underline{6}\underline{n}$ divisible by n? (The expression $\underline{6}\underline{n}$ should be interpreted as a two-digit integer with tens digit 6 and units digit n, not as 6 times n.)
Original LaTeX notation
For how many different digits $n$ is the two-digit number $\underline{6}\underline{n}$ divisible by $n$? (The expression $\underline{6}\underline{n}$ should be interpreted as a two-digit integer with tens digit 6 and units digit $n$, not as 6 times $n$.)

level

Level 3

type

Prealgebra

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Source and history

Official source

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