143 (number)

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143 is the natural number following 142 and preceding 144.

<< 140 141 142 143 144 145 146 147 148 149 >> List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	One hundred [and] forty three
Ordinal	143rd
Factorization
Roman numeral	CXLIII
Binary	10001111
Hexadecimal	8F

Contents 1 In mathematics 2 In Internet slang 3 In computing 4 Other uses

[edit] In mathematics

143 is the sum of three consecutive primes (43 + 47 + 53), as well as 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:

3² + 4² = 5²

3³ + 4³ + 5³ = 6³

3⁴ + 4⁴ + 5⁴ + 6⁴ = 7⁴ − 143

[edit] In Internet slang

Also, 143 is commonly seen as the meaning "I Love You" in internet slang. 1, 4 and 3 are the letter counts of those words.[1] 143 can also be abbreviated as <3.

[edit] In computing

The standard port number for the IMAP4 protocol.

[edit] Other uses

• 143 Records, a record label