A natural number is divisible by 3 if the sum of its digits in base 10 is also divisible by 3. This known as the divisibility rule of 3. Because of this, the reverse of any number that is divisible by three (or indeed, any permutation of its digits) is also divisible by three.

Learn about the number 3. Learn the different ways number 3 can be represented. See the number three on a number line, five frame, ten frame, numeral, word, ...

Three is the first odd prime number, and the second smallest prime. It is both the first Fermat prime (2 2º + 1) and the first Mersenne prime (2² - 1), as well as the first lucky prime.

Three is an important number for many cultures (groups of people living together). It is also a prime number. It is the first odd prime. In Roman numerals, it is III. three gifts of the wise men (Magi) who visited Christ at his birth in the Gospel of Matthew.

Mar 28, 2025 · The <3 emoticon means love on social media. This cute symbol is most commonly used to discuss romantic relationships, friendships, or passions when texting, tweeting, or posting.

The superscript three, ³, is used in mathematics to denote the cube of a number or variable.

3: Directed by Lou Simon. With Todd Bruno, Aniela McGuinness, Mike Stanley, Jim Adams. A man and a woman kidnap her rapist in order to extract a confession from him, but how far are they willing to go for justice and what if they have the wrong man?

Your guide to the number 3, an odd number which is prime. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.

In Japan they celebrate Culture Day on November 3 rd. It is a National Holiday and the prestigious award “Order of Culture” is presented to a praiseworthy person who has promoted arts, science or culture.

The number 3 is a very mystical and spiritual number featured in many folktales (three wishes, three guesses, three little pigs, three bears, three billy goats gruff).