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8x3x5x7, 28x10x3 there are a ton more but don't have time to write them

Q: What are some factor strings to get to 840?

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Stings with four factor that make 840

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

At least thirty-six of them.

2 x 420 3 x 280 4 x 210 5 x 168 6 x 140

There are a lot like 3x56x5 and there are a thousand more but i just don't want to write them all :)

32 is not a factor of 840.

2 x 2 x 2 x 3 x 5 x 7

actually 7 is a factor of 840, because when you divide 7 into 840 you get 120 with no remainders therefore making it a factor of 840.🤡

3 x 5 x 7 x 8 2 x 6 x 7 x 10

Only one can be longest.

Only one can be longest. 2 x 2 x 2 x 3 x 5 x 7

Only one can be longest.