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21 mod 5, 21 modulo 5 as well as 21 modulus 5 all mean the same: 🙂
The remainder of the (Euclidean) division of 21 by 5.
What is 21 modulo 5?
- 21 is the dividend
- 5 is the divisor (modulo)
- 1 is the remainder
So, the answer is:
Next, we show you the math.
How is 21 mod 5 Calculated?
Any decimal number is made up of a whole part, followed by a decimal point, followed by its decimal digits.
Conduct the three steps below:
- Take the whole part of 21 / 5 called quotient: 4
- Multiply the quotient by the divisor: 4 × 5 = 20
- Subtract the result from step 2 from the dividend: 21 – 20 = 1
Proof: 1 = (4 × 5) + 1.
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