What is the inverse of 7 mod 26?

So, the inverse of 15 modulo 26 is 7 (and the inverse of 7 modulo 26 is 15).

What is the the multiplicative inverse of 7?

1
Dividing by a number is equivalent to multiplying by the reciprocal of the number. Thus, 7 ÷7=7 × 1⁄7 =1. Here, 1⁄7 is called the multiplicative inverse of 7.

What is the sum of the additive inverse of 7 and the multiplicative inverse of 7?

= -48/7.

What is the sum of negative 7 and its additive inverse?

ZERO
The sum of 7 and its opposite (-7) is ZERO. Property: For every number a, there is a number -a so that a + (-a) = 0 and (-a) + a= 0. The additive inverse of a number is a number such that the sum of the two numbers is 0.

What is the inverse of 19 MOD 141?

52
Therefore, the modular inverse of 19 mod 141 is 52.

What is multiplicative and additive inverse?

The opposite of a number is its additive inverse. A number and its opposite add to 0, which is the additive identity. The reciprocal of a number is its multiplicative inverse. A number and its reciprocal multiply to 1, which is the multiplicative identity.

What is the additive inverse of Mod 12?

Additive inverse is easy. A clock face is the usual example of mod 12. -7 = 0 – 7 = 12 – 7 = 5. 5 is the additive inverse. is to find a number that is one more than a multiple of 12 and is also divisible by 7. 2 * 12 + 1 = 25 is not divisible by 7, but is divisible by 5.

How do you find the additive and multiplicative inverse of 7$?

To get the additive inverse, subtract the number from the modulus, which in this case is $7$. (except that $0$ is its own inverse) For example, the additive inverse of $5$ is $7-5=2$. To get the multiplicative inverse is trickier, you need to find a number that multiplied by $n$ is one more than a multiple of $7$.

What is the modmodular multiplicative inverse of 7?

Modular multiplicative inverse (MMI) of a number “a” (mod 7) can be calculated by raising “a” to the power of (Phi (7)-1) and modulating by 7, where Phi is the Euler’s totient function – in other words, number of integers from 1 to 7 whose largest common divisor with 7 is 1.

What is the additive inverse of 321^-1 mod 56709?

Im worried when it comes to a much bigger number such as 321^-1 mod 56709. additive inverse:(13,4) multiplicative inverse: a x b = 1(mod 17) 13 x 4 = 1(mod 17) I’m working on another example: list all additive inverse pairs and multiplicative inverse pairs of the sets Z28 and Z28*. So far i have this: Integers in the set: