900 (number)

Nine hundred is the natural number following eight hundred ninety-nine and preceding nine hundred one.

Template:Numbers 0-1000
Ordinal	Nine hundred
Cardinal	900th
Factorization	$2^{2}\cdot 3^{2}\cdot 5^{2}$
Roman numeral	CM
Binary	1110000100
Hexadecimal	384

Nine hundred is also:

The telephone area code for "premium" phone calls.
In Greek number symbols Sampi ("Great Pi" ostensibly from the visual resemblance to the greek letter), which is signified by a convex horisontal arc with two parallel vertical lines below. Sometimes represented in a slightly tilted form.
For the year AD, see 900.

901 = 17 × 53

902 = 2 × 11 × 41, sphenic number, also the telephone area code for Nova Scotia and Prince Edward Island

903 = 3 × 7 × 43, sphenic number, triangular number

904 = 2³ × 113 or 113x8

905 = 5 × 181, sum of seven consecutive primes (109 + 113 + 127 + 131 + 137 + 139 + 149)

906 = 2 × 3 × 151, sphenic number

907 prime number, also the telephone area code for Alaska

908 = 2² × 227

909 = 3² × 101

910 = 2 × 5 × 7 × 13

911 prime number, sum of three consecutive primes (293 + 307 + 311), Sophie Germain prime.

911 is:

9-1-1, the emergency telephone number in the United States and Canada,
9/11 terrorist attack
the exact number of days between the 9/11 attack and the March 11, 2004 terrorist attack in Madrid, Spain, not including those dates themselves (the Madrid attack took place on the 912th day following September 11, 2001, when the first day counted is September 12th)
the model number of the sports car Porsche 911

912 = 2⁴ × 3 × 19, sum of four consecutive primes (223 + 227 + 229 + 233), sum of ten consecutive primes (67 + 73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109)

913 = 11 × 83, Smith number

914 = 2 × 457

915 = 3 × 5 × 61, sphenic number, Smith number

916 = 2² × 229

917 = 7 × 131, sum of five consecutive primes (173 + 179 + 181 + 191 + 193)

918 = 2 × 3³ × 17

919 prime number, cuban prime, palindromic prime, centered hexagonal number

920 = 2³ × 5 × 23

921 = 3 × 307

922 = 2 × 461, Smith number

923 = 13 × 71

924 = 2² × 3 × 7 × 11, sum of a twin prime (461 + 463)

925 = 5² × 37

926 = 2 × 463, sum of six consecutive primes (139 + 149 + 151 + 157 + 163 + 167)

927 = 3² × 103, tribonacci number

928 = 2⁵ × 29, sum of four consecutive primes (227 + 229 + 233 + 239), sum of eight consecutive primes (101 + 103 + 107 + 109 + 113 + 127 + 131 + 137)

929 prime number, palindromic prime, sum of nine consecutive primes (83 + 89 + 97 + 101 + 103 + 107 + 109 + 113 + 127)

930 = 2 × 3 × 5 × 31, heteromecic number

931 = 7² × 19, sum of three consecutive primes (307 + 311 + 313)

932 = 2² × 233

933 = 3 × 311

934 = 2 × 467

935 = 5 × 11 × 17, sphenic number

936 = 2³ × 3² × 13, pentagonal pyramidal number

937 prime number, star number

938 = 2 × 7 × 67, sphenic number

939 = 3 × 313

940 = 2² × 5 × 47

941 prime number, sum of three consecutive primes (311 + 313 + 317), sum of five consecutive primes (179 + 181 + 191 + 193 + 197)

942 = 2 × 3 × 157, sphenic number, sum of four consecutive primes (229 + 233 + 239 + 241)

943 = 23 × 41

944 = 2⁴ × 59

945 = 3³ × 5 × 7, double factorial of 9

946 = 2 × 11 × 43, sphenic number, triangular number, hexagonal number

947 prime number, sum of seven consecutive primes (113 + 127 + 131 + 137 + 139 + 149 + 151)

948 = 2² × 3 × 79

949 = 13 × 73

950 = 2 × 5² × 19

951 = 3 × 317, centered pentagonal number

952 = 2³ × 7 × 17

952 is also 9-5-2, a card game similar to bridge.

953 prime number, Sophie Germain prime

954 = 2 × 3² × 53, sum of ten consecutive primes (73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109 + 113)

955 = 5 × 191

956 = 2² × 239

957 = 3 × 11 × 29, sphenic number

958 = 2 × 479, Smith number

959 = 7 × 137

960 = 2⁶ × 3 × 5, sum of six consecutive primes (149 + 151 + 157 + 163 + 167 + 173)

961 = 31², sum of three consecutive primes (313 + 317 + 331), sum of five consecutive primes (181 + 191 + 193 + 197 + 199)

962 = 2 × 13 × 37, sphenic number

963 = 3² × 107, sum of the first twenty-four primes

964 = 2² × 241, sum of four consecutive primes (233 + 239 + 241 + 251)

965 = 5 × 193

966 = 2 × 3 × 7 × 23, sum of eight consecutive primes (103 + 107 + 109 + 113 + 127 + 131 + 137 + 139)

967 prime number

968 = 2³ × 11²

969 = 3 × 17 × 19, sphenic number, tetrahedral number

970 = 2 × 5 × 97, sphenic number

971 prime number

972 = 2² × 3⁵

973 = 7 × 139

974 = 2 × 487

975 = 3 × 5² × 13

976 = 2⁴ × 61

977 prime number, sum of nine consecutive primes (89 + 97 + 101 + 103 + 107 + 109 + 113 + 127 + 131)

978 = 2 × 3 × 163, sphenic number

979 = 11 × 89

980 = 2² × 5 × 7²

981 = 3² × 109

982 = 2 × 491

983 prime number, Wedderburn-Etherington number

984 = 2³ × 3 × 41

985 = 5 × 197, sum of three consecutive primes (317 + 331 + 337), Smith number

986 = 2 × 17 × 29, sphenic number

987 = 3 × 7 × 47

988 = 2² × 13 × 19, sum of four consecutive primes (239 + 241 + 251 + 257)

989 = 23 × 43

990 = 2 × 3² × 5 × 11, sum of six consecutive primes (151 + 157 + 163 + 167 + 173 + 179), triangular number

991 prime number, sum of five consecutive primes (191 + 193 + 197 + 199 + 211), sum of seven consecutive primes (127 + 131 + 137 + 139 + 149 + 151 + 157)

992 = 2⁵ × 31, heteromecic number

993 = 3 × 331

994 = 2 × 7 × 71, sphenic number

995 = 5 × 199

996 = 2² × 3 × 83

997 prime number

998 = 2 × 499

999 = 3³ × 37, Kaprekar number

In some parts of the world, such as the UK and Commonwealth countries, 999 is the emergency telephone number; it is being quickly replaced, however, by the international emergency number 112.
999 was also the name of a significant London punk band active during the 1970s.