216. That is because 125 is 5 cubed and 343 is 7 cubed, so 6 cubed is 216.
64 125 216 343 512 729Bold numbers are the missing in the sequence
729
343.
343
125 * 343 = 42,875
1 8 27 64 125 216 343
Your sequence seems to be a cubed sequence, but you are missing 64 between 27 and 125.13 = 123 = 833 = 2743 = 6453 = 12563 = 216So, next would be 73, which equals 343.
The GCF of 343 and 125 is 1.
125, 216, 343 and 512.
343, 512, 729, 1000, 1331, 1728, 2197
27, 64, 125, 216, 343, 512, 729
1