11001.
To convert a decimal number to binary, we start with the highest power of two that goes into the decimal number once, and reduce from there.
For 25, we move forward as follows:
25 is first divisible by 16, so we get 1 and are left with 9
After 16, we check to see 8 and 9 can be divided by eight, getting us another 1
After 8, we are left with 1. 1 cannot be divided by 4 or 2, so we get two 0s.
Finally 1 is divisible by 1, giving us a 1.
Stringing what we found together, we get the following
1 1 0 0 1.
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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.
The decimal equivalent of the binary number 1111111111111111 is 65535.
The binary number 10000000 represents the decimal 128
If 1101 is a decimal number, then its binary equivalent is 10001001101. If 1101 is a binary number, then its decimal equivalent is 13.
Binary ( 1 0 ) = decimal ( 2 )