carilah KPK & FPB dari 84,21,24
✘ FPB dan KPK dari 84, 21, dan 24
84 21 24
/ \ / \ / \
2 42 3 7 2 12
/ \ / \
2 21 2 6
/ \ / \
3 7 2 3
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84 = 2² × 3 × 7
21 = 3 × 7
24 = 2³ × 3
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FPB = 3
KPK = 2³ × 3 × 7
= (2 × 2 × 2) × 3 × 7
= 8 × 3 × 7
= 8 × 21
= 168
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