Is 7*6*5*4*3*2*1+5 composite?
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5 (7+6+4+3+2+1)=5 (23)=115
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Yes , 7*6*5*4*3*2*1+5 ia a composite number
7*6*5*4*3*2*1 + 5
=5 [ 7*6*4*3*2*1 +1 ]
As it has another factor other than 1 and itself , so it is a composite number
7*6*5*4*3*2*1 + 5
=5 [ 7*6*4*3*2*1 +1 ]
As it has another factor other than 1 and itself , so it is a composite number
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