number theory

American  

noun

Mathematics.

1. the study of integers and their relation to one another.

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number theory British  

noun

1. the study of integers, their properties, and the relationship between integers

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Etymology

Origin of number theory

First recorded in 1910–15

Example Sentences

Notice how round number theory came into play with a strong reversal on June 23, during its third week of trading, recording a bearish dark cloud cover candle.

From Barron's

Notice how round number theory came into play at the very round $200 number in the fourth quarter last year.

From Barron's

The five-year weekly chart shows the stock has returned to a breakout above a bullish inverse head and shoulders pattern at the very round $100 level from May 2023, a textbook example of round number theory in action.

From Barron's

Tuesday’s session produced a bullish engulfing candle that reversed higher precisely at the very round $400 level, an example of round number theory coming into play.

From Barron's

Round number theory may come into play near $300.

From Barron's