クレジットカード番号ってどうやって決まるの？｜ギズモード・ジャパン – ギズモード・ジャパン
ギズモード・ジャパン |
クレジットカード番号ってどうやって決まるの？｜ギズモード・ジャパン
ギズモード・ジャパン クレジットカードの番号は適当に決まっているわけではありません。16桁の最後の1桁は、それまでの15桁をあるアリゴリズムに沿って計算することで定まります。この方法 … |
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