Question 703185: what is the probability of randomly generating 16 digits and getting your MasterCard number?
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! Assuming every number combination is possible for each digit, there are 10^16 = 10,000,000,000,000,000 (that's 1 followed by 15 zeros...this is the number 10 quadrillion, which is equal to 1000 trillion)
So the probability is 1 out of 10^16 or 1 out of 10 quadrillion, which is a very small chance.
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