the 7-11-13 numbers.
write down any three digit number.
such as 456 , 682 , etc.
multiply the number by( 7*11*13 )
and you will find answer as two times that number.
ex. 543*7*11*13=543543
write down any three digit number.
such as 456 , 682 , etc.
multiply the number by( 7*11*13 )
and you will find answer as two times that number.
ex. 543*7*11*13=543543
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