In a certain code language, 'LOAD' is coded as '27241613' and 'CLEAN'…

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

**********************************************************

The pattern here is;

 'LOAD' is coded as '27241613',

(arranging letters according to the alphabetical series)

LOAD → ADLO

So,

A → Z(26) +1= 27

D → W(23) +1= 24

L → O(15) +1= 16

O → L(12) +1= 13

Similarly,

(arranging STRIKE according to alphabetical series)

STRIKE → EIKSRT

E → V(22) +1= 23

I → R(18) +1= 19

K → P (16) +1= 17

S → I(9) +1= 10

R → H(8) +1= 9

T → G(7) +1= 8

Thus, 2319171098 is correct.