4. (a) Use the Euclidean algorithm to find the greatest common
divisor of 21 and 13, and the greatest common divisor of 34 and
21.
(b) It turns out that 21 and 13 is the smallest pair of numbers
for which the Euclidean algorithm requires 6 steps (for every other
pair a and b requiring 6 or more steps a > 21 and b > 13).
Given this, what can you say about 34 and 21?
(c) Can you guess...
a. Using the Euclidean Algorithm and Extended Euclidean
Algorithm, show that gcd(99; 5) = 1 and find integers s1 and t1
such that 5s1 + 99t1 = 1.
[Hint: You should find that 5(20) + 99(?1) = 1]
b. Solve the congruence 5x 17 (mod 99)
c. Using the Chinese Remainder Theorem, solve the congruence
x 3 (mod 5)
x 42 (mod 99)
d. Using the Chinese Remainder Theorem, solve the congruence
x 3 (mod 5)
x 6 (mod 9)...
find a linear combination for gcd(259,313). use
extended euclidean algorithm.
what is inverse of 259 in z subscript 313?
what is inverse of 313 in z subscript 259?
All necessary steps much show for these problems, please.
Use the Euclidean algorithm to find gcd(12345, 54321).
Write gcd(2420, 70) as a linear combination of 2420 and 70. The
work to obtain the gcd is provided.
2420 = 34(70) + 40
70 = 1(40) + 30
40 = 1(30) + 10
30 = 3(10) + 0
Determine if 1177 is prime or not. If it is not, then write
1177 as a product of primes
Find gcd(8370, 465) by unique...
(abstract algebra)
(a) Find d = (26460, 12600) and find integers m and n so that d
is expressed in the form m26460 + n12600.
(b) Find d = (12091, 8439) and find integers m and n so that d
is expressed in the form m12091 + n8439.
Use Euclid’s algorithm to find integers x, y and d for which
3936x + 1293y = d is the smallest possible positive integer. Using
your answers to this as your starting point, do the following
tasks.
(a)Find an integer s that has the property that s ≡ d mod 3936
and s ≡ 0 mod 1293.
(b) Find an integer S that has the property that S ≡ 573 mod
3936 and S ≡ 0 mod 1293.
(c) Find an...