77040.
It goes like,
107 * 2 = 214
214 * 3 = 642
642 * 4 = 2568,
and so on.
x * a(+1) = (a new)x
Except that the word "completes" would suggest that there are no more terms. Not true!
77,040
The next number is 77040. Solution: 107 x 2 = 214x 3 = 642 x 4 = 2568 x 5 = 12840 x 6 = 77040
If the fourth term were 2568 there is a simple answer, but with the series going up and down, I have no clue.
77,040 because 107 x 2 = 214 214 x 3 = 642 642 x 4 = 2568 2568 x 5 = 12840 12840 x 6 = 77040
77,040 That is correct, because... 107 x 2 = 214 214 x 3 = 642 642 x 4 = 2568 2568 x 5 = 12840 12840 x 6 = 77040
77040
Each number is multiplied by an incrementing value. 107 is multiplied by 2, 214 is multiplied by 3, 642 is multiplied by 4 and so on.
multiply by 1 higher number each time 214 / 107 = 2 642 / 214 = 3 2,568 / 642 = 4 12,840 / 2,568 = 5 so 6 x 12,840 = 77,040 next
It is: MMDLXVIII = 2568
The phone number of the Hartford is: 802-296-2568.
2568 x 3 = 7704
The smallest even number using this combination of digits is 2568.