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Here's my credit card number

71,048 次观看 • 3 年前 •via X (Twitter)

9 条评论

Howie Hua 的头像
Howie Hua3 年前

Slight correction that doesn't affect 16-digit numbers but does affect 15-digit numbers (ex: amex): We would read right to left and double the even placements.

Austin in Dallas 的头像
Austin in Dallas3 年前

Brilliant! It all makes so much sense now

Michael Butler 的头像
Michael Butler3 年前

What the???

Dime-Store-Cowboy 🦅 的头像
Dime-Store-Cowboy 🦅3 年前

You're pretty cool dude. I like your math work.

Frank Boesch 的头像
Frank Boesch3 年前

This is awesome @howie_hua !!

musicreaver 🔜 ??? 的头像
musicreaver 🔜 ???3 年前

That’s really cool, I never knew that about credit cards.

🇮🇳sandeep deshmukh🇮🇳 的头像
🇮🇳sandeep deshmukh🇮🇳3 年前

Hummmm.....,👌

Glenner 的头像
Glenner3 年前

My credit card digits add up to a pre number 🤷‍♂️

R. D. Fernández ن 的头像
R. D. Fernández ن3 年前

Thank you.

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