It is: 1
A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 17 are 1 and 17The only common factor is 1. Therefore, the greatest common factor is 1.
The only common factor is 1.
The only common factor is 1.
The only common factor is 1.
17 and 23 are both prime. The only factors they have are one and themselves. Their only factor in common is 1 so it has to be the greatest common factor.
1 is the only common factor
No. 1 is not their only common factor. 17 is actually a factor of 68, so they have 1 and 17 as common factors.
The only common factor is 1.
The only common factor is 1.
1! :)
Factors of 15 are 1, 3, 5 and 15. Factors of 34 are 1, 2, 17 and 34. Only common factor is 1, which is also the GCF of both numbers.
17 is prime so its factors are 1 and 17. 17 is neither a factor of 15 nor 30, so the GCF is 1.