87 in Binary

Decimal 87 in binary conversion provides the detailed information on what is the binary equivalent of (87)10, and the step-by-step work for how to convert the decimal (base-10) number 87 to its binary (base-2) equivalent.

(87)10 in binary is equal to:
(87)₁₀ = (?)₂
Perform successive MOD-2 operation for decimal 87, and mark the initial remainder as LSB and the final remainder as MSB as like the below.

87 MOD-2	87 / 2 = 43	Remainder is 1 → LSB
43 MOD-2	43 / 2 = 21	Remainder is 1
21 MOD-2	21 / 2 = 10	Remainder is 1
10 MOD-2	10 / 2 = 5	Remainder is 0
5 MOD-2	5 / 2 = 2	Remainder is 1
2 MOD-2	2 / 2 = 1	Remainder is 0
1 MOD-2	1 / 2 = 0	Remainder is 1 → MSB

Arrange the remainders from MSB to LSB forms the binary equivalent of 87.
87₁₀ = 1010111₂

Hence,
87 in binary is 1010111

where,
87₁₀ is the given decimal number,
10 in 87₁₀ represents the base-10 or decimal number system,
1010111₂ is the binary equivalent of the decimal 41,
2 in 1010111₂ represents the base-2 or binary number system.

Important Notes: (87)10 in Binary
The below are some of the important notes to be remembered while converting the base-10 number 87 into a binary number.

1. The initial or first remainder while performing MOD-2 operation for 87 is a Least Significant Bit (LSB).
2. The last remainder while performing MOD-2 operation for 87 is a Most Significant Bit (MSB).
3. The remainders of MOD-2 operation for 87 should be written from MSB to LSB to form the binary equivalent for the given decimal number (87)10.