The next number in the series 3, 618, 72, is -1635.
The relevant rule is
Un = (-1161n2 + 4713n - 3546)/2 for n = 1, 2, 3, ...
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As an even number greater than 2, 618 is divisible by 2 and therefore not a prime number.No, 618 is not a prime number, as it can be divided by 3.
8.8286
3n = 618 n = 618 ÷ 3 n = 206
It is: 618 = DCXVIII
0.0065