The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
1
17 is prime so its factors are 1 and 17. 17 is neither a factor of 15 nor 30, so the GCF is 1.
The GCF of 18, 17, and 15 is 1 because 17 is a prime and has no factorsx other than 1 and 17, and 17 is not a factor of 18 or 15. Detailed work: Factors of 18: 1 2 3 6 9 18 Factors of : 1 17 Factors of : 1 3 5 15 The GCF of 18, 17, and 15 is 1
GCF of 102 and 17 is 17.
The GCF is 17.
The GCF is 17.
The GCF is 17.
The GCF of 15 and 90 is 15.