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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 GCF of 28 and 63 is 7.
The greatest common factor (GCF) of 7, 42, and 70 is 7. To find the GCF, you need to identify the largest number that divides evenly into all three numbers. In this case, 7 is the largest number that can divide 7, 42, and 70 without leaving a remainder. Therefore, the GCF of 7, 42, and 70 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)