Two number are said to be "relatively prime" if they have no common factors - of course, other than the trivial factor 1. Even a prime number is not "relatively prime" to itself, since the prime number itself is the common factor. For example, the common factor of 7 and 7 is 7. Thus, the only situation I can think of where a number has no common factor with itself is that the number is 1.
All elements in Group 7 have the same number of electrons in their outermost shell and this number corresponds to the group number.
Multiples of 7 include 7, 14, 21, 28 and so on. For them to be common, they need to be compared to another set of multiples.
the LCM (Less Common Multiple) of 7 and 11 is =77The least common multiple of 7 , 11 = 77.
The GCF of 28 and 63 is 7.
7 is the most common lucky number
it is either 3 or 7
Probably 1,3 or 7
The most common oxidation number of chlorine is -1.
Technetium oxidation states are between -1 and +7; the most common are 4,5 and 7.
9 as the best players wear it
2, 6 and 7 do not have a mode. A mode is the most common number, but there is only one of each number so there is no mode.
1 is the least common factor of the number 2, number 4 and number 7. 28 is the least common multiple of the number 2, number 4 and 7.
7
Sometimes yes ... sometimes no. Valency of chlorine is 7 ... it has 7 valence electrons. But its most common oxidation number is -1.
The smallest number which is a common multiple of both 7 and 4 is 28.
-1 is most common, though oxidation number up to +7 are known (except for fluorine)