(31)8 = (?)10. Octal 31 to decimal decimal conversion provides the detailed information on what is the decimal equivalent of the octal 31 and the step-by-step work for how to convert (31)8 into corresponding (base-10) decimal equivalent manually.
(31)8 in decimal is equal to:
318 = 2510
0o31 = 2510
Hence,
the decimal equivalent of octal number (31)8 is (25)10.
where,
318 is the given octal number,
8 in 318 represents the base-8 or octal number system,
25 is the decimal equivalent of octal number 31,
10 in 2510 represents the base-10 or decimal number system.
Important Notes: (31)8 in Decimal
The below are some of the important notes to be remembered while converting the (base-8) octal number 31 into a (base-10) decimal equivalent.
The below step-by-step solution shows how to convert (31)8 into decimal equivalent. To find the decimal equivalent of (31)8, multiply 80 with the right most digit, 81 with the left subsequent digit and so on until the left most digit of the given octal number 31. The sum of all individual products is the decimal equivalent of octal 31.
Solved Example:
Convert (31)8 into decimal equivalent.
step 1 Observe the input parameters, values and what to be found.
Input values:
Octal Number = 318
What to be found:
What is the decimal equivalent of (31)8?
step 2 Multiply 80 with the right most digit, 81 with the left subsequent digit and so on until the left most digit of the given octal number 31. Therefore, arrange the given decimal number 31 in the expression form as like the below:
= (3 x 81) + (1 x 80)
step 3 Resolve the powers of 8 in the above equation:
= (3 x 8) + (1 x 1)
step 3 Simplify the above equation further:
= 24 + 1
= 25
(31)2 = (25)10
Therefore,
25 is the decimal equivalent of octal number (31)8