Is 7 × 6 ×5 × 4 × 3 ×2 ×1 +5 a composite number ? justify your answer
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7x6x5x4x3x2x1+5 can be written as =5x(7x6x4x3x2x1)
=5x(1009)
so, other than the number and 1, it have 5 and 1009 as it's factor too, so it is also a composite number
=5x(1009)
so, other than the number and 1, it have 5 and 1009 as it's factor too, so it is also a composite number
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