Q: Is 9 and 16 co prime numbers?

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Yes, 9 and 16 are relatively prime. They do not have any prime factors in common.

Two numbers are said to be co-primes if they do not share any common divisor except for 1. For example, 9 and 10 are co-primes. Number 9 has factors 1,3,9 and 10 has 1,2,5,10. Only 1 is common. So, these two are co-prime numbers.

29 is prime, all the others in the list are composite.

All numbers not divisible by 3 or 9 are relatively prime to 9. This would include 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, etc.

Related questions

Co-prime numbers, like 4 and 9, are any set of integers that have a GCF of 1.

Numbers are co-prime, or relatively prime, if their GCF is 1. 4 and 9 are relatively prime.

Two numbers, like 4 and 9, are considered co-prime if their GCF is 1.

All numbers greater than one in that range can be co-prime. 4 and 9 are co-prime.

Yes, 9 and 16 are relatively prime. They do not have any prime factors in common.

Of course not! For example 3 and 9 are odd, but are not co-prime!

No, 9 and 20 are not co-prime numbers because they share a common factor of 1.

Numbers with a GCF of 1, like 4 and 9.

The number 1 is the only common factor of co-prime numbers, which is what makes them co-prime. 9 and 10 for example or 15 and 23.

The numbers are co-prime so the answer is 1.

Such numbers, like 4 and 9, are called relatively prime or co-prime.

Two numbers are said to be co-primes if they do not share any common divisor except for 1. For example, 9 and 10 are co-primes. Number 9 has factors 1,3,9 and 10 has 1,2,5,10. Only 1 is common. So, these two are co-prime numbers.