307 (number)

307 is the natural number following 306 and preceding 308.

← 306 307 308 →
List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	three hundred seven
Ordinal	307th (three hundred seventh)
Factorization	prime
Prime	63rd
Divisors	1, 307
Greek numeral	ΤΖ´
Roman numeral	CCCVII, cccvii
Binary	1001100112
Ternary	1021013
Senary	12316
Octal	4638
Duodecimal	21712
Hexadecimal	13316

In mathematics

• 307 is the 63rd prime number and an odd prime number.^[1] It is an isolated (i.e., not twin) prime,^[2] but because 309 is a semiprime, 307 is a Chen prime.^[3][4]
• 307 is the number of one-sided noniamonds meaning that it is the number of ways to organize 9 triangles with each one touching at least one other on the edge.^[5]
• 307 is the third non-palindromic number to have a palindromic square. 307²=94249.^[6]
• 307 is the number of solid partitions of 7.^[7]
• 307 is one of only 16 natural numbers for which the imaginary quadratic field ${\displaystyle \mathbb {Q} ({\sqrt {-n}})}$ has class number 3.^[8]