exists and is an alternate of . 1 microgram is 0.000001 gram or 1 gram is 1000000 micrograms. Scroll down to related links and look at Weight and mass conversion.
Report Abuse. The major Credit cards (Visa Mastercard) almost always have 16 digits. The number will be less than 16 if the card is from a department store or gas station. CupCake Â· 8 years ago.
The first six digits of the credit card number (including the initial MII digit) make up the issuer identifier, which denotes the credit card network to which the number belongs. Some of the better-known issuer identifiers include: 1  American Express -- 34xxxx and 37xxxx. 2  Visa -- 4xxxxx. 3  MasterCard -- 51xxxx-55xxxx.