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.
Answer Wiki. I'll get to the first 4 digits in sec :) First let me say a couple of things about the first 6 digits. The first 6 digits of a Mastercard (or Visa for that matter) card are the BIN (sometimes called IIN) number. BIN stands for bank identification number and is a unique 6 digit number issued by Mastercard to the bank or provider (issuer in industry speak) who is going to be responsible for the cards.