Most devices use three line segments, but devices made by some Japanese companies such as Sharp and Casio, as well as in the Koreas and Taiwan, 7 is written with four line segments because in …

On the seven-segment displays of pocket calculators and digital watches, 7 is the number with the most common glyph variation (0, 6 and 9 also have variant glyphs). Most calculators use three line …

The number 7 is often considered lucky, and it has a definite mystique, perhaps because it is a prime number—that is, it cannot be obtained by multiplying two smaller numbers together.

Dec 19, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ७ (7)). See 7 § Evolution of the Arabic digit for more.

Noun 1. 7 - the cardinal number that is the sum of six and one heptad, septenary, septet, seven, sevener, VII digit, figure - one of the elements that...

Dec 26, 2016 · The meaning of SEVEN is a number that is one more than six. How to use seven in a sentence.

Study the symbolism of the number seven. Learn what the number 7 means spiritually, review its meaning in the Bible, and explore its significance in various fields.

'7 Years', in Spanish '7 aňos', is the lead single by the Australian metal band Superheist. '7 Years' is also a song by the Danish soul-pop band Lukas Graham. '7 Weeks', in Spanish '7 weeks', is the sixth …

In Roman numerals, it is VII. In mathematics, the number seven is an odd number and a prime number. It is also a Mersenne prime. Take off the last digit and multiply it by 2. Subtract that product from the …

Explore the curious properties of number 7, an odd number which is prime. Includes mathematical info, prime factorization, divisors, bases and much more! A fascinating reference for students, coders, …