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Best Answer

The LCM is 840.

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Wiki User

9y ago

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Wiki User

14y ago

The LCM of 42 and 56 and 70 is 840.

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Wiki User

12y ago

factoring

42=2*3*7

70=2*5*7

56=2*2*2*7

LCM=2*2*2*3*5*7=840

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Anonymous

Lvl 1
4y ago

42,56,70 lcm

2 42 56 70

7 24,28,35

3 3,4,5

2 1,4,5

2 1,2,5

5 1,1,5

1,1

LCM = 2×7×3×2×2×5= 840

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Anonymous

Lvl 1
4y ago

2×7×2×3×2×5=840

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Anonymous

Lvl 1
4y ago

84

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Anonymous

Lvl 1
4y ago

4

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Anonymous

Lvl 1
4y ago

2×2

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Anonymous

Lvl 1
4y ago

840

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Anonymous

Lvl 1
4y ago

80

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Q: What is the LCM of 42 70 and 56?
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