Question

3. Is 6011012391452317 a valid credit card number? \[ \begin{array}{l} 6011012391452317 \\ 120210143181854327 \\ (1+2)+0+2+1+0+1+4+3+(1+8)+1+8+5+4+3+2+7=53 \\ 53 \equiv 3 \bmod 10 \end{array} \] Therefore, 6011012391452317 is not a valid credit card number.

          3. Is 6011012391452317 a valid credit card number?
\[
\begin{array}{l}
6011012391452317 \\
120210143181854327 \\
(1+2)+0+2+1+0+1+4+3+(1+8)+1+8+5+4+3+2+7=53 \\
53 \equiv 3 \bmod 10
\end{array}
\]

Therefore, 6011012391452317 is not a valid credit card number.

3. Is 6011012391452317 a valid credit card number?

6011012391452317

120210143181854327

(1+2)+0+2+1+0+1+4+3+(1+8)+1+8+5+4+3+2+7=53

53 ≡ 3 10

Therefore, 6011012391452317 is not a valid credit card number.

Added by Blanca A.

Horngren’s Cost Accounting

Srikant M. Datar, Madhav V. Rajan 16th Edition

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Solved by Expert Georgiann Andersen

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3. Is 6011012391452317 a valid credit card number? \[ \begin{array}{l} 6011012391452317 \\ 120210143181854327 \\ (1+2)+0+2+1+0+1+4+3+(1+8)+1+8+5+4+3+2+7=53 \\ 53 \equiv 3 \bmod 10 \end{array} \] Therefore, 6011012391452317 is not a valid credit card number.