GCF of 18 and 72 is 18
72 is not a factor of 18; 18 is a factor of 72.
The highest factor of 72 is 72.
72 is a factor of itself
No, 6 is a factor of 72.
No, 72 is a factor of 144.
No. But 36 is a factor of 72.
No, 72 is a multiple of 9.
Yes, 72 is a factor of 4.
The greatest factor is 72 which is a factor of 72 (though not of 60).
The greatest common factor of 144 and 72 is 72.
Yes, 8 is a factor of 72. 9x8 would equal 72.