A Philips's answer to Potty's Secondary 1 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
A Philips
A Philips's answer
864 answers (A Helpful Person)
1st
Answer is 104.
1, 2, 4, 8, 12, 26, 52 & 104