We stumbled upon an interesting infographic and couldn’t stop us from sharing it with our readers. Credit Card or CC is an essential and prominent financial product these days, usually owned by a majority of users to buy goods and services. If you’re a Credit Card or Debit Card holder, then you must have noticed the 16-digit numeric code inscribed on the card. But as most of you might wonder, those 16 numbers aren’t given randomly but serves an important purpose. According to an amazing algorithm by Mint.com, one can simply crack the credit card code and determine if the card number is invalid or fake. Sounds weird? Just try it on your CC and make sure to do the math right!
How to Validate a Credit Card with your Mind -
We tried this trick on a valid Credit Card and a Debit Card as well (both Visa), and surprisingly the result turned out true as the final sum was divisible by 10. Do try this out and remember to follow the described steps carefully. 
Source: Mint.com
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{ 2 comments… read them below or add one }
Awesome Buddy!!
I tried with 3 cards, and the numbers were divisible by 3.. :0
Is this correct:
4417-1427-9732-7711
8 2 2 4 8 6 14 2
8+4+7+2+7+4+4+2+3+7+6+8+1+2+14+7=86
86/10 = Invalid Card