143 (number)

143 is a whole number. It comes after 142 and before 144.

← 142 143 144 →
Cardinalone hundred forty-three
Ordinal143rd
(one hundred forty-third)
Factorization11 × 13
Greek numeralΡΜΓ´
Roman numeralCXLIII
Binary100011112
Ternary120223
Quaternary20334
Quinary10335
Senary3556
Octal2178
DuodecimalBB12
Hexadecimal8F16
Vigesimal7320
Base 363Z36

In mathematics

  • 143 is a composite number. This means it has more factors than just 1 and itself.
  • It is the product of two prime numbers: 11 and 13. Since 11 and 13 are next to each other in the list of prime numbers, 143 is the product of two consecutive prime numbers.

Other uses

Many people use 143 as a code for “I love you.” This is because the phrase “I love you” has 1, 4, and 3 letters in each word, respectively.

Composite number Prime number