A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 8100, exactly as in the question.
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A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 8100, exactly as in the question.
The square of 8100 is the same as 8100 x 8100.
8.5% of 8100= 8.5% * 8100= 0.085 * 8100= 688.5
1620
no, 8100 is an even number thus not prime