Perfect Number

Synonyms of perfect number

• ideal number
• flawless number
• excellent number

Antonyms of perfect number

• imperfect number
• flawed number
• defective number

Collocations of perfect number

perfect number

Frequency: 80 %

Mathematicians study perfect numbers in number theory.

perfect number

Frequency: 70 %

A perfect number is a positive integer that is equal to the sum of its proper divisors.

perfect number

Frequency: 60 %

Euclid discovered the first four perfect numbers as early as 300 BC.

perfect number

Frequency: 50 %

To find a perfect number, one must calculate the sum of its divisors.

Idiomatic Expressions for perfect number

• Phrase: Perfect number of guests
  Meaning: An ideal or exact number of people
  Usage: We only invited a perfect number of guests to the party to ensure everyone had a great time.