Kpk dri 64,140 dan 160

64 = 2 × 2 × 2 × 2 × 2 × 2
140 = 2 × 2 × 5 × 7
160 = 2 × 2 × 2 × 2 × 2 × 5

kpk = 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 = 2240

64 = 2^6
140 = 2² x 5 x 7
160 = 2^5 x 5

kpk = 2^6 x 5 x 7 = 64 x 35 = 2.240