The common factors of 12 and 21 are 1 and 3.
3
Tautologically!
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The greatest common factor in 3
12
It is: 2 to 3
CF of 12 and 21 is 3.
12
The highest common factor of the numbers 12 and 21 is 3.
The Greatest Common Factor of 12, 36, 21 is 3.
Assuming the smaller sphere is the image of the larger sphere after transformation (based on the order of the radii): the scale factor is 4/12 = 1/3
3 is a prime factor of 12 and of 21.
It is: 3 to 2
It is: 2 to 3
The O'Reilly Factor - 1996 2012-12-21 was released on: USA: 21 December 2012
You are 12-20. The only common factor of 11 and 21 is 1.