Coprime Numbers

Numbers and Numerals	Composite Numbers	Prime Numbers	Facts (Prime Numbers)	Even Numbers
Odd Numbers	Natural Numbers	Whole Numbers	Predecessor Number	Successor Number
Number Expansion	Number Comparison	Literal Numbers	Roman Numbers	Coprime Numbers
Perfect Numbers	Multiplication Properties of Numbers	Order of Numbers	Sieve of Eratosthenes	Number line
Square Numbers	Shortcut Method of Numbers	Cube Numbers	Real Numbers

Definition Two numbers are said to be Coprimes when they have only 1 as a common factor. Following examples would further help you to understand Coprimes Example 1 = Are numbers 6 and 25 Coprime ? Answer = Two given numbers are 6 and 25 Factors of 6 = 1, 2, 3, 6 Factors of 25 = 1, 5, 25 On comparing the factors of numbers 6 and 25, you can see that both have only 1 as a common factor, Hence we can say that numbers 6 and 25 are Coprimes. Example 2 = Are numbers 12 and 21 Coprime ? Answer = Two given numbers are 12 and 21 Factors of 12 = 1, 2, 3, 4, 6, 12 Factors of 21 = 1, 3, 7, 21 On comparing the factors of numbers 12 and 21, you can see that both have 1 and 3 as common factors, Hence, we can say that numbers 12 and 21 are not Coprimes. Example 3 = Are numbers 27 and 16 Coprime ? Answer = Two given numbers are 27 and 16 Factors of 27 = 1, 3, 9, 27 Factors of 16 = 1, 2, 4, 16 On comparing the factors of numbers 27 and 16, you can see that both have 1 as a common factor, Hence we can say that numbers 27 and 16 are Coprimes. Study More Solved Questions / Examples Find Whether the following numbers are coprime numbers A) 7 and 16 B) 21 and 10 C) 25 and 35 D) 81 and 13 E) 40 and 50