1:
2:
3:
4:
5:
6:
7:
8:
9:
10:

test_list(nums) = \
	p = []; \
	for(i=1,#nums, \
		if(isprime(nums[i]), \
			p=concat(p,nums[i])\
		) \
	); \
	return(p);
	
test_list([1,2,3,4,5,6])

1:
2:
3:
4:
5:
6:

1
2
3
4
5
6