Which of the following is not true?
A. If a number is factor of two numbers then it is also factor of their sum.
B. If a number is factor of two numbers then it is also factor of their difference.
C. 15 and 24 are co-prime to each other.
D. 1 is neither prime nor composite.
Answer:C
Which of the following is not true?
A. If a number is factor of two numbers then it is also factor of their sum. B. If a number is factor of two numbers then it is also factor of their difference. C. 15 and 24 are co-prime to each other. D. 1 is neither prime nor composite.