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If integer a is divisible by both 3 and 14, which of the fol
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01 Feb 2020, 09:18
01 Feb 2020, 09:18
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If integer a is divisible by both 3 and 14, which of the following must be true?
Indicate all such statements.
\(\square\) a is divisible by 6
\(\square\) a is equal to 42
\(\square\) a is divisible by 21
\(\square\) a is positive
Kudos for the right answer and explanation
Indicate all such statements.
\(\square\) a is divisible by 6
\(\square\) a is equal to 42
\(\square\) a is divisible by 21
\(\square\) a is positive
Kudos for the right answer and explanation
Re: If integer a is divisible by both 3 and 14, which of the fol
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03 Feb 2020, 10:23
03 Feb 2020, 10:23
1
Prime factorization is needed here
--> if a is divisible by 3 and 14, it has factors 3, 2 , 7
A) 6 = 2*3 and therefore a factor of a
B) a could be 42, since 2*3*7 = 42, but it can also be any other multiple of 42
C) 21 = 3*7 and therefore a is divisible by 21
D) a can be positive, but it can also be negative
--> hence A, C
--> if a is divisible by 3 and 14, it has factors 3, 2 , 7
A) 6 = 2*3 and therefore a factor of a
B) a could be 42, since 2*3*7 = 42, but it can also be any other multiple of 42
C) 21 = 3*7 and therefore a is divisible by 21
D) a can be positive, but it can also be negative
--> hence A, C
Re: If integer a is divisible by both 3 and 14, which of the fol
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15 Apr 2023, 23:00
15 Apr 2023, 23:00
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