no need for 3 as it already goes in to 6
so 5 6 7 go in to 210
210 = 5 x 42 = 6 x 35 = 7 x 30
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7 and 5 are prime numbers, but 3*2=6
It is the LCM which is 210
5, 7, and 3 go into 105.
It is: 3*5*7 = 105
As we know that the formula of n!=n(n-1)! so 8!=8*(8-1)! =8*7! =8*7*6! =8*7*6*5! =8*7*6*5*4! =8*7*6*5*4*3! =8*7*6*5*4*3*2! =8*7*6*5*4*3*2*1! =8*7*6*5*4*3*2*1 =40320 so the factorial of the given no. 8 is 40320.