## Is 77 a coprime?

The prime factorization of 77 is 7 × 11. Since it has a total of 2 prime factors, 77 is a composite number.

## Is 69 a coprime number?

No, 69 is not a prime number. The number 69 is divisible by 1, 3, 23, 69. For a number to be classified as a prime number, it should have exactly two factors. Since 69 has more than two factors, i.e. 1, 3, 23, 69, it is not a prime number.

## What are the co prime numbers from 1 to 100?

Co-prime Numbers from 1 to 100

Some of the co-prime number pairs that exist from 1 to 100 are (1, 2), (3, 67), (2, 7), (99, 100), (34, 79), (54, 67), (10, 11), etc. Try out forming more such pairs of co-prime numbers by yourself. Here is Cuemath’s online co-prime calculator for our ease.

## Is 68 and 17 coprime numbers?

factors of 17: 1,17. factors of 68: 1,2,4,17,34,68. since two factor are common between 17 and 68, they are not co prime numbers.

## Why is 77 not a prime number?

No, 77 is not a prime number. The number 77 is divisible by 1, 7, 11, 77. For a number to be classified as a prime number, it should have exactly two factors. Since 77 has more than two factors, i.e. 1, 7, 11, 77, it is not a prime number.

## What are the factor pairs of 77?

Therefore, the pair factors of 77 are (1, 77) and (7, 11).

## Is 69 a prime or composite?

The number 69 is a composite number. Its factors are 1, 3, 23, and 69.

## Is 57 and 69 a co-prime number?

The numbers 57 and 69 are co-primes – Mathematics.

## What are the factor of 69?

Solution: The factors of 69 are 1, 3, 23 and 69 .

## How do you find a co-prime number?

To find the co-prime of a number, find the factors of the number first. Then, choose any number and find the factors of the chosen number. All the numbers which do not have any common factor other than 1 will be the co-prime of the given number.

## What are the co-prime numbers from 1 to 50?

Therefore, the prime numbers between 1 to 50 are 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.

## What are the co-prime numbers from 1 to 30?

{17, 47, 107, 137, 167, 197, 227, 257, 317, 347, 467, 557, 587, 617, 647, 677, 797, 827, 857, 887, 947, 977, 1097, 1187, 1217, 1277, 1307, 1367, 1427, 1487, 1607, 1637, …}

## Is 81 and 16 are Coprime?

(f) 81 and 16

Since both have only one common factor, i.e., 1, therefore, they are co-prime numbers.

## Which of the following pairs of number are Coprime 17 and 68?

Factors of 68 are 1, 2, 4, 17, 34 and 68 . 1 and 17 are teh common factor. i.e. they are not co-prime. Therefore, no 17 and 68 are not co prime numbers.

## Which of the following numbers are co-prime 15 and 37?

Coprime numbers are numbers that have only 1 as their HCF. 18 and 35 have no common factors, Therefore, 18 and 35 are coprime numbers. As they have no common factors, 15 and 37 are co-prime numbers.

### References:

1. https://metanumbers.com/77
2. https://www.cuemath.com/numbers/is-69-a-prime-number/
3. https://www.cuemath.com/numbers/coprime-numbers/
4. https://www.lidolearning.com/questions/m-bb-ncert6-ch3-ex3p4-q5/q5-which-of-the-following-numb/
5. https://www.cuemath.com/numbers/is-77-a-prime-number/
6. https://byjus.com/maths/factors-of-77/