Here we will explain what 18 mod 195 means and show how to calculate it. 18 mod 195 is short for 18 modulo 195 and it can also be called 18 modulus 195.
Modulo is the operation of finding the Remainder when you divide two numbers. Therefore, when you ask "What is 18 mod 195?" you are asking "What is the Remainder when you divide 18 by 195?".
We will show you two methods of finding 18 mod 195 (18 modulo 195). To differentiate our methods, we will call them the "Modulo Method" and the "Modulus Method".
Before we continue, we remind you of what the different parts of a division problem are called so you can follow along: Dividend / Divisor = Quotient and in this case 18 is the Dividend, 195 is the Divisor, and the answer is called the Quotient.
Furthermore, the Quotient x.y has two parts: x to the left of the decimal point is the Whole part, and y to the right of the decimal point is the Fractional part.
Modulo Method
To find 18 mod 195 using the Modulo Method, we first divide the Dividend (18) by the Divisor (195).
Second, we multiply the Whole part of the Quotient in the previous step by the Divisor (195).
Then finally, we subtract the answer in the second step from the Dividend (18) to get the answer. Here is the math to illustrate how to get 18 mod 195 using our Modulo Method:
18 ÷ 195 ≈ 0.092308
0 × 195 = 0
18 - 0 = 18
Thus, the answer to "What is 18 mod 195?" is 18.
Modulus Method
To find 18 mod 195 using the Modulus Method, we first find the highest multiple of the Divisor (195) that is equal to or less than the Dividend (18).
Then, we subtract the highest Divisor multiple from the Dividend to get the answer to 18 modulus 195 (18 mod 195):
Multiples of 195 are 0, 195, 390, 585, etc. and the highest multiple of 195 equal to or less than 18 is 0. Therefore, to get the answer:
18 - 0 = 18
Thus, once again, the answer to "What is 18 mod 195?" is 18.
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