9223372036854775808

Updated: May 23, 2025

The value of the reward was immense; for it will be seen, by calculation, that the sixty-fourth of the double progression divided by 1: 2: 4: 8: 16: 32: etc., is 9223372036854775808. But the sum of all the terms of a double progression, beginning with 1, may be obtained by doubling the last term, and subtracting from it 1.

Frederica Seeger - Entertainments for Home, Church and School