The GCF of 105 and 189 is 21.
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Greatest common factor of 189 and 225 is 9.
The greatest common factor of the numbers 189 and 200 is 1.
The GCF is 27.
28
The least common multiple of two numbers is their product divided by their greatest common factor. Since 7 is a prime number and 27 is not a multiple of 7, their greatest common factor is 1. The least common multiple is 7 x 27 ÷ 1 = 189.