The number of hexagrams in the Book of Changes is 999788. Which hexagram is it?

999 788

Divide this group of numbers into two groups, with 999 as a group, which is the divination; 788 is the second group, which is the next divination.

999 adds up to 27, divided by 8, and the remaining 3 is separation.

788 adds up to 23, divided by 8, and the remaining 7 is Gen.

Li and Gen formed volcano travel divination.

27 plus 23 equals 50, divided by 6, leaving 2, and the dynamic is 62.

Divination is the divination of Huofengding.