25 = 1000000011001
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The binary number for 25 is 11001. This is because binary is a base-2 number system, meaning each digit can only be 0 or 1. To convert the decimal number 25 to binary, you divide 25 by 2 repeatedly, noting the remainders from each division. Reading the remainders from bottom to top gives you the binary equivalent.
11001 is the number 25
Examples of binary numbers are...1010 = 101111 = 1510001 = 1710101 = 2111001 = 25
To find the two's complement form of -25 using 8 bits, we first need to represent 25 in binary form. 25 in binary is 00011001. To get the two's complement of -25, we invert all the bits of 00011001 to get 11100110. Finally, we add 1 to the inverted binary number to get the two's complement form of -25, which is 11100111 in 8 bits.
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