Question

1*2*3*4*5*6*7=

Answer 1

1*2*3*4*5*6*7

=2*3*4*5*6*7

=6*4*5*6*7

=24*5*6*7

=120*6*7

=720*7

=5040

Answer 2

1*2*3*4*5*6*7

=2*3*4*5*6*7

=6*4*5*6*7

=24*5*6*7

=120*6*7

=720*7

=5040

Answer 3

1 x 2 x 3 x 4 x 5 x 6 x 7 \(=\) 5040

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