Answer: See explanation
Step-by-step explanation:
A factor is one of two or more numbers that divides a given number without a remainder.
18: 1, 2, 3, 6, 9, 18
54: 1, 2, 3, 6, 9, 18, 27, 54
GCF of 18 & 54: 18
29: 1
39: 1, 3, 13, 39
GCF of 29 & 39: 1
If you're asking for the GCF of all these numbers, its 1
