Prime factors of 189 are 33 and 7Prime factors of 231 are 3, 7, and 11HCF of 189 and 231 is 7
3 x 3 x 3 x 7 = 189 2 x 2 x 2 x 5 x 5 = 200 No common prime factors; the GCF is 1.
The factors of 144 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144 The factors of 189 are: 1, 3, 7, 9, 21, 27, 63, 189 The common factors are: 1, 3, 9 The Greatest Common Factor: 9
The factors of 189 are 1 3 7 9 21 27 63 189 So the largest factor is 189. However, 189 is not a proper factor, even though it is a factor. The largest proper factor is 63. Now 63 is not prime, since is is clearly divisible by 3. The largest prime factor is 7
The factors of 42 are:1, 2, 3, 6, 7, 14, 21, 42The factors of 189 are:1, 3, 7, 9, 21, 27, 63, 189The factors of 441 are:1, 3, 7, 9, 21, 49, 63, 147, 441The common factors are:1, 3, 7, 21The Greatest Common Factor:GCF = 21
Factors of 189: 1,3,7,9,21,27,63,189 Factors of 200: 1,2,4,5,8,10,20,25,40,50,100,200 Their only common factor is 1.
The greatest common factor of the numbers 189 and 200 is 1.
The GCF is 1.
The common factors of 90 and 189 are 1, 3 and 9.
The common factors of 189 and 693 are: 1, 3, 7, 9, 21, and 63
Prime factors of 189 are 33 and 7Prime factors of 231 are 3, 7, and 11HCF of 189 and 231 is 7
The GCF is 1.
3 x 3 x 3 x 7 = 189 2 x 2 x 2 x 5 x 5 = 200 No common prime factors; the GCF is 1.
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself. Prime factorisation is irrelevant in finding the GCF of a single number.
The common factors are 1, 3 and 9.
Solve it yourself
The factors of 94 are: 1, 2, 47, 94.The factors of 189 are: 1, 3, 7, 9, 21, 27, 63, 189.The common factor is: 1The Greatest Common Factor (GCF) is: 1