Which Indian cricketer is known as "Brown Bradman"?
What was the nickname for the Boeing B-17 long-range bomber used in World War II?
A pugilist is a competitor in which sport?
What vehicle was sold to John and Maureen Hendricks at the Barrett-Jackson Auto Auction in Scottsdale, Arizona..........
Which German brothers published fairy tales in the 19th century?
Who was the founder of the Christian Science movement?
"Kraal" is an Afrikaans and South African English word for what?
The police force of which country is known locally as "The Gardaí"?
From which language do we get the word "fiasco"?
What is the literal translation of the name Las Vegas?
1113, 1131, 1311, 3111, 1122,1212, 1221, 2112, 2121, 2211
1113 ، 3111
1122 ، 2211
1131 ، 1311
1212 ، 2121
A 9-digit number has a property that the first 'n' digits are divisible by 'n'. There is no '0' in the number and all the digits in the number are distinct. What is the number?
Arrange all the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 to give four different square numbers. (You make a square number when you multiply something by itself, so 49 is square because it is 7 times 7)
It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.
But I also know how many of these numbers are prime.
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