How do u make this 4/4

Answer:
624
Step-by-step explanation:
The largest number you can create is by multiplying all the numbers together:
13*1*5*8=13*40=520
Correction:
Since when you multiply a number by 1 it stays the same:
We can add 5+1 to get 6
Then we multiply it by 13 and 8 to get...
6*13*8=624
Answer:
13×8×(1×5)
Step-by-step explanation:
Subtraction or division won't get you the highest number thus use all the other possible methods
The numbers we can use are 13, 1 ,5 and 8
First, we can multiply the 2 largest number
13 and 8 which equals 104
Then we can add the rest of the numbers, 5 and 1, which is 6 and multiply them by 104 giving us
=624
now put this into an equation
13×8×(5+1)
Hopefully this helped- have a good day)