One.
The GCF is 1.
The greatest common factor of 39 and 18 is definitely 3.
The greatest common factor of 30 and 39 is 3.
The greatest common factor is 5 * * * * * Actually, it is 39
The greatest common factor of 37 and 39 is 1.
The greatest common factor of 90 and 39 is 3
The greatest or highest common factor is the highest number that divides exactly into two or more numbers. 39: 1, 3, 13, 39 87: 1, 3, 29, 87 The greatest common factor for 39 and 87 is 3.
Greatest common factor of 39 and 104 is 13.
The greatest common factor of 22 and 39 is 1
The Greatest Common Factor of 39, 48, 51: 3
The greatest common factor of 3 and 39 is 3.
The greatest common factor of 33, 27 & 39 is 3.