 Such partitions are said to be "conjugate" of one another.In the case of the number 4, partitions 4 and 1 + 1 + 1 + 1 are conjugate pairs, and partitions 3 + 1 and 2 + 1 + 1 are conjugate of each other.Of particular interest is the partition 2 + 2, which has itself as conjugate.