Two of them.
17
Seventeen nineteenths in digits is written as 17/19.
3.14259265358979323
17/19
The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.
17 digits
17 of them. 17 of them. 17 of them. 17 of them.
17
17
as of October 17, 2011, the record for pi is over 10 trillion digits (10,000,000,000,000)
17
The VIN is 17 digits long.
Seventeen nineteenths in digits is written as 17/19.
If you mean, "What is the largest number of digits possible in the product of two 2-digit numbers" then 99 * 99 = 9801, or 4 digits. Anything down to 59 * 17 = 1003 will have 4 digits.
17
They are: 11 13 17 19 31 41 61 and 71 which makes 8 of them
3.14259265358979323