KPK dari 12,30,40 tulips jalan

12 =>> 2^2 × 3
30 =>> 2 × 3 × 5
40 =>> 2^3 × 5

KPK =>> 2^3 × 3 × 5
=>> 8 × 3 × 5
=>> 120

semoga bermanfaat

12= 12. 30. 40
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2. 6. 2. 15. 2. 20
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2. 3. 3. 5. 2. 10
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2. 5
KPK= 2²×3×5=60