Yes, they are relatively prime.
No, 30 and 135 are not relatively prime.
No, they are not relatively prime.
The gcf is 15; so 30 and 135 are not relatively prime. 30 = 2 x 3 x 5 135 = 33 x 5 hcf = 3 x 5 = 15 If the gcf of two numbers is 1, then they are relatively prime 15 ≠ 1, thus 30 and 135 are not relatively prime.
No, because 5 divides both 40 and 135.
no, they both have 5 as factors
No. 15 is a common factor
The prime factors of 221 are 13 and 17. 13 x 17 = 221. The factors of 221 are 1, 13, 17, and 221.
No it is not a prime number, because you can multiply 13 and 17 together and get 221 13x17=221
The prime factors of 221 are 13 and 17. They're the only prime numbers that will divide evenly into 221 with no remainder.
No, 13*17=221, therefore it is not.
No.
221 = 13 x 17