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.
And three is actually travel and entertainment. MasterCard MasterCard will usually begin with 51-55 with 16 digits. Visa Visa credit card numbers will begin with a 4 and have 13 or 16 digits. American Express American Express will usually begin with a 34 or 37 and have 15 digits.Diner's Club Diner's Club will usually begin with a 36 or 55.asterCard MasterCard will usually begin with 51-55 with 16 digits. Visa Visa credit card numbers will begin with a 4 and have 13 or 16 digits. American Express American Express will usually begin with a 34 or 37 and have 15 digits. Diner's Club Diner's Club will usually begin with a 36 or 55.