Show that 4128 0012 4389 0110 is an invalid visa credit card number.
a. 2(4+2+0+1+4+8+0+...
Mathematics, 20.10.2019 10:00 nculberson6
Show that 4128 0012 4389 0110 is an invalid visa credit card number.
a. 2(4+2+0+1+4+8+0+1) + 1 + (1+8+0+2+3+9+0+0) = 64, doesn't end in 0
b. 2(4+2+0+1+4+8+0+1) + 1 + (1+8+0+2+0+9+1+0) = 62, doesn't end in 0
c. 2(4+2+0+1+4+8+0+1) + 1 + (1+0+0+2+3+9+1+0) = 57, doesn't end in 0
d. 2(4+2+0+1+4+8+0+1) + 1 + (1+8+0+2+3+9+1+0) = 65, doesn't end in 0
Answers: 3
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