Question 374811
If the 13 digit number to be divisble by 4 then it must contain the last two digits that must be divisble by 4
Given digits are 1,2,3,4,5
Last two digits possibilities are 12,24,32,44,54
The remaining 11 positions  can have values 1-5 since repetition is allowed then we have 5^11
Total 5*5^11=244140625