a and 8521. It is a prime!
No.
All My Children - 1970 1-8521 was released on: USA: 29 January 2003
The Young and the Restless - 1973 1-8521 was released on: USA: 20 November 2006
Perth to Vladivostok is 8521 km (5295 miles).
10 itself is a multiple of 5, so any multiple of 10 must also be a multiple of 5.
The smallest multiple of 5 is 5.
5 is a multiple of 1 and 5.
The greatest number you can make from the digits 1, 8, 2, and 5 is 8521. By arranging the digits in descending order, you maximize the value of the number.
Any multiple of 10 is also a multiple of 5.
1025 is a multiple of 5.
The only prime multiple of 5 is 5.