You need at least two numbers to find a GCF.
The GCF is 15.
15 is.
Their HCF which is 1
Find the HCF of 135 and 165 prime factor method
15... 165/15= 11 and 150/15= 10
The HCF of 165 and 210 is 15. The LCM is 2310.
They are 15 and 2145 respectively
The GCF is 5.
The GCF is 15 so far.
It is just 1 that is the HCF
The factors of 165 are 1, 3, 5, 11, 15, 33, 55, and 165. The factors of 182 are 1, 2, 7, 13, 14, 26, 91, and 182. The highest common factor of 165 and 182 is 1.
The greatest common factor of 165 and 345 is 15.