22 and 15. Their only common factor is the number 1. All of the other pairs have other common factors as well as the number 1.
Any multiple of 3 will not be relatively prime to 9 because they will both have 3 as a common factor. Some of these numbers are 3, 6, 12, 39, 102, and 372.
12 and 252 is a pair of numbers that fit those criteria.
It is relatively prime to any number that does not have 2, 3, 4, 6, 8, 12, 16, 24 or 48 as factors. To be relatively prime to 48, the only common factors they can have is the number 1. Numbers it is relatively prime to include 5, 7, 11, 13, 19, 23, 25, 29, 31, 35, 37, 41, 43 and 47. It also includes many numbers above 48.
There are 12 factor pairs for 600:factor pair = 600,1factor pair = 300,2factor pair = 200,3factor pair = 150,4factor pair = 120,5factor pair = 100,6factor pair = 75,8factor pair = 60,10factor pair = 50,12factor pair = 40,15factor pair = 30,20factor pair = 25,24
1: 1 2: 1, 2 (2 is prime.) 3: 1, 3 (3 is prime.) 4: 1, 2, 4 (2 is prime.) 5: 1, 5 (5 is prime.) 6: 1, 2, 3, 6 (2 and 3 are prime.) 7: 1, 7 (7 is prime.) 8: 1, 2, 4, 8 (2 is prime.) 9: 1, 3, 9 (3 is prime.) 10: 1, 2, 5, 10 (2 and 5 are prime.)
hcf(10, 21) = 1 ⇒ 10 & 21 relatively prime hcf(12, 54) = 6 ⇒ 12 & 54 not relatively prime hcf(15, 27) = 3 ⇒ 15 & 27 not relatively prime hcf(21, 38) = 1 ⇒ 21 & 38 relatively prime
10 and 21
No, they are not relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
I suggest factoring each pair of numbers, and checking whether they have, or don't have, common factors. A pair of numbers is said to be "relatively prime" if they have no common factors (their greatest common factor is 1). For larger numbers, Euclid's algorithm could be used, but for such small numbers, factoring is probably faster.
Two numbers are relatively prime if the only factor they have in common is 1. The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 25 are 1, 5, and 10. The only factor they have in common is 1, so they are relatively prime.
12 and 30 are not relatively prime because they have two common prime factors (2 and 3).
12 and 35 are NOT prime numbers.
Nine can only be relatively prime when compared to another number or set of numbers. 9 is relatively prime to 4, 9 is not relatively prime to 12.
no
No, they are not.