162028

I figured out that 15 and 27 both multiply by three, so I put the fourth space on the vertical row as 3. I know that 15 is 3 times 5 and 27 is 3 times 9, so i put those numbers on the second and sixth spaces on the horizontal row. Next, I knew that 49 was only able to be made with two 7s, so I knew that 7 had to be the number that was used twice. I wrote 7 on the second space on the vertical row and the fifth space on the horizontal row. I also saw that under one of the 7s, there was the number 42. 7 times 6 is 42, so I put 6 on the bottom vertical space. After that, I saw that the number 22 was on the square and knew that 22 could only be made with 11 and 2, so I put 11 on the third space on the vertical line and 2 on the third space on the vertical line. 24 was under the 2 column, so I put 12 on the fifth space on the vertical line. On the top row, there was 32 and 40, so I had to figure out what number divided into both. I came up with 8 and 4, but since 5 was taken I knew it was 4, putting it on the only space left on the vertical line. I put 8 on the first space and 10 on the fourth space on the horizontal line, then figured out the rest of the red multiples on the table with ease.