The phrase "aggregate of three" is correct and usable in written English.
It can be used when referring to a total or sum that consists of three distinct parts or elements.
Example: "The aggregate of three different studies shows a significant correlation between the variables."
Alternatives: "total of three" or "sum of three".
More precisely, Goldbach claimed that "every number greater than 2 is an aggregate of three prime numbers".
Winners are selected based on the aggregate of three scores: scientific merit, artistic merit, and creative combination of the science and art.
An aggregate of three leading polls shows Mr Kejriwal's Aam Aadmi Party Common Mann's Party) picking up 37 seats - two more than the simple majority needed to form a government.
Starting with the postulate that no single metric will capture all the attributes of a prediction, we used an aggregate of three metrics for evaluation.
On the contrary, Nakano and Ozimek (1998) used gel chromatography over Sephacryl S-200 gel and suggested that GMP is an aggregate of three monomers, and the molecular weight was not affected by changes in pH.
Children who mentioned at least one correct method of transmission and two correct methods of prevention scored an aggregate of three and were regarded as having correct knowledge of schistosomiasis prevention.
Over the closing two rounds, Day played the last three holes in a damaging aggregate of four over par.
THE SCORING -- In the men's competition, the final time is the aggregate of four runs, two per day.
Rock, in geology, naturally occurring and coherent aggregate of one or more minerals.
Wood felt pressure but did not wobble, a par five securing a 69 and a celebrated home victory at an aggregate of nine under par.
At Muirfield, an astonishing run of form saw Poulter move from an aggregate of six over par to even within eight holes.
