How to use arrayformula with GCD?

Question

I'm trying to use this formula to determine if Column A is a multiple of 5, but the arrayformula isn't expanding.

=ARRAYFORMULA(IF(GCD(5,A1:A)=5,TRUE,FALSE))

GCD doesn't seem to support arrayformula. How to make it work with ARRAYFORMULA?

Column C is the result of using autofill.

A	B[Arrayformula]	C[DragFill]
1	FALSE	FALSE
2		FALSE
3		FALSE
4		FALSE
5		TRUE
6		FALSE
7		FALSE
8		FALSE
9		FALSE
10		TRUE
62		FALSE
34		FALSE
22		FALSE
75		TRUE
34		FALSE
46		FALSE
30		TRUE
21		FALSE
92		FALSE
56		FALSE

Answer 1

try:

=BYROW(A1:A20, LAMBDA(x, GCD(5, x)=5))

or just:

=INDEX(MOD(A1:A20, 5)=0)