840- 2 2 2 5 7 3
840- 2 3rd power, *5*7*3
840- 2*2*2*5*7*3
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The GCF is 40. The LCM is 6720. The GCD is infinite.
35 can be a factor, but it is not prime.
There is no factorization. 37 is a prime number.37 is already prime. Its only prime factor is itself.
81 is not prime. Its prime factorization is 3x3x3x3.
No, 51 isn't prime. 17 is the largest prime factor of 306.