Yes, 857 is prime as its only factors are 1 and itself.
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Well, darling, 857 by 18 is 4764. Now, if you want to break down 857 and 18 into their prime factors, you'll get 857 = 857 (prime already, honey) and 18 = 2 x 3 x 3. So, 857 by 18 is the same as 857 by 2 x 3 x 3. Hope that tickles your fancy!
Itself and one because 857 is a prime number
yes it is.
857 = 857/1
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