Question

co primes upto 1 to 25.​

Answer 1

Answer:

In number theory, two integers a and b are coprime, relatively prime or mutually prime if the only positive integer that is a divisor of both of them is 1. Consequently, any prime number that divides one of a or b does not divide the other. This is equivalent to their greatest common divisor being 1. 

Answer 2

Step-by-step explanation:

Using the J programming language:

Find the prime factors of each of the integers 1–100, and store them in b. Then remove all duplicated factors across all the integers, store the list of unique factors in c, and display c:

]c=.}.~.,b=.q:a=.1+i.100

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97

Now use c to find the set of integers that do not have common factors with any other integer in the set of integers 1 to 100.

c#~1=+/c e."1 b

53 59 61 67 71 73 79 83 89 97

So there are 10 integers in the set of integers from 1 to 100 that are ”perfect” co-primes, in that they do not have common factors with any other integer in the range 1–100 (except 1). The “perfect” co-primes are: 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97.