143 (number)

 ← 142 143 144 →
Cardinal one hundred forty-three
Ordinal 143rd
(one hundred forty-third)
Factorization 11 × 13
Divisors 1, 11, 13, 143
Greek numeral ΡΜΓ´
Roman numeral CXLIII
Binary 100011112
Ternary 120223
Quaternary 20334
Quinary 10335
Senary 3556
Octal 2178
Duodecimal BB12
Vigesimal 7320
Base 36 3Z36

143 (one hundred [and] forty-three) is the natural number following 142 and preceding 144.

In mathematics

143 is the sum of seven consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31). But this number is never the sum of an integer and its base 10 digits, making it a self number.

Every positive integer is the sum of at most 143 seventh powers (see Waring's problem).

143 is the difference in the first exception to the pattern shown below:

${\displaystyle 3^{2}+4^{2}=5^{2}}$
${\displaystyle 3^{3}+4^{3}+5^{3}=6^{3}}$
${\displaystyle 3^{4}+4^{4}+5^{4}+6^{4}=7^{4}-143}$.

In media

• 143 (film), a 2004 Indian film
• Musicians Ray J and Bobby Brackins wrote the song "143"
• On Mister Rogers' Neighborhood: "Transformations", 143 is used to mean "I love you". 1 meaning I for 1 letter, 4 meaning Love for the 4 letters, and 3 meaning You for the 3 letters. Reportedly, Fred Rogers maintained his weight at exactly 143 pounds for the last thirty years of his life, and associated the number with the phrase "I love you"[1]
• Jake Shimabukuro released the song "143" based on his experience in high school when 143 was sent on a pager to indicate "I Love You" [2]

In popular culture

• A popular pager number to communicate "I love you"

143 is also: