3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. [citation …

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 definition: a cardinal number, 2 plus 1. See examples of three used in a sentence.

Noun 1. 3 - the cardinal number that is the sum of one and one and one tercet, ternary, ternion, terzetto, three, threesome, trey, triad, trine, trinity,...

The number 3 is a natural number following 2 and preceding 4. It is an odd and prime number, often symbolically significant across different religions and cultures.

Dec 22, 2025 · 3 is the only integer which is the sum of the preceding positive integers (1+2=3) and the only number which is the sum of the factorials of the preceding positive integers …

Math At Microsoft Education, we believe every student deserves the opportunity to thrive. Make math accessible for learners with powerful, inclusive tools designed to unlock potential and …

Many cultures around the world see the number three as important or special. The number three appears in many famous stories, beliefs, and traditions. Here are some examples: The Three …

For 3, the answer is: yes, 3 is a prime number because it has only two distinct divisors: 1 and itself (3). As a consequence, 3 is only a multiple of 1 and 3. Find out more: What is a prime number?

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 …