kpk dan fpb dari 240 dan 84

240 = 2^4 × 3 × 5
84 = 2^2 × 3 × 7

KPK = 2^4 × 3 × 5 × 7 = 1680
FPB = 2^2 × 3 = 12

Semoga membantu

240=2×2×2×2×3×5=2⁴×3×5
84=2×2×3×7
KPK=2⁴×3×5×7
=16×3×5×7
=48×5×7
=240×7
=1.680
FPB=2²×3
=12