Class: Integer

Inherits:

Object

• Object
• Integer

Defined in:

lib/pmeth.rb

Instance Method Summary

• #factors ⇒ Object

  returns all positive factors of an Integer.

• #prime? ⇒ Boolean

  returns true if self is a prime number, false otherwise.

Instance Method Details

#factors ⇒ Object

returns all positive factors of an Integer

# File 'lib/pmeth.rb', line 7

def factors
   	(1..self).select { |n| (self % n).zero? } 
end

#prime? ⇒ Boolean

returns true if self is a prime number, false otherwise

Returns:

• (Boolean)

# File 'lib/pmeth.rb', line 12

def prime?
	Prime.prime?(self)
end