139 in Binary

Decimal 139 in binary conversion provides the detailed information on what is the binary equivalent of (139)10, and the step-by-step work for how to convert the decimal (base-10) number 139 to its binary (base-2) equivalent.

(139)10 in binary is equal to:
(139)₁₀ = (?)₂
Perform successive MOD-2 operation for decimal 139, and mark the initial remainder as LSB and the final remainder as MSB as like the below.

139 MOD-2	139 / 2 = 69	Remainder is 1 → LSB
69 MOD-2	69 / 2 = 34	Remainder is 1
34 MOD-2	34 / 2 = 17	Remainder is 0
17 MOD-2	17 / 2 = 8	Remainder is 1
8 MOD-2	8 / 2 = 4	Remainder is 0
4 MOD-2	4 / 2 = 2	Remainder is 0
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 139.
139₁₀ = 10001011₂

Hence,
139 in binary is 10001011

where,
139₁₀ is the given decimal number,
10 in 139₁₀ represents the base-10 or decimal number system,
10001011₂ is the binary equivalent of the decimal 41,
2 in 10001011₂ represents the base-2 or binary number system.

Important Notes: (139)10 in Binary
The below are some of the important notes to be remembered while converting the base-10 number 139 into a binary number.

1. The initial or first remainder while performing MOD-2 operation for 139 is a Least Significant Bit (LSB).
2. The last remainder while performing MOD-2 operation for 139 is a Most Significant Bit (MSB).
3. The remainders of MOD-2 operation for 139 should be written from MSB to LSB to form the binary equivalent for the given decimal number (139)10.