MCQ
If two numbers do not have common factor $($other than $1),$ then they are called :
- AComposite numbers
- Bprime numbers
- Ctwin primes
- ✓co $-$ prime numbers
✓
Answer
Correct option: D.
co $-$ prime numbers
If two numbers do not have a common factor $($other than $1),$ then they are called co $-$ primer numbers.
We know that two numbers are co $-$ prime if their common factor $($greatest common divisor) is $1$.
e.g. co $-$ prime of $12$ are $11, 13$.
We know that two numbers are co $-$ prime if their common factor $($greatest common divisor) is $1$.
e.g. co $-$ prime of $12$ are $11, 13$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A line segement is of length 10 units. If the coordinates of its one end are $(2,-3)$ and the abscissad of the other end is 10 , then its ordinate is
→In the given figure. JKLM is a square with sides of length 6 units. Points $A$ and $B$ are the mid-points of sides KL and LM respectively. If a point is selected at random from the interior of the square. What is the probability that the point will be chosen from the interior of $\triangle JAB$ ?
→If $\tan\theta = \frac{20}{21}$ then $\frac{\cos\theta-\sin\theta}{\cos\theta+\sin\theta} = $
→Choose the correct answer from the given four options: If in triangles $\text{ABC}$ and $\text{DEF}, \frac{\text{AB}}{\text{DE}}=\frac{\text{BC}}{\text{FD}},$ then they will be similar, when :
→If $\alpha, \beta$ are the zeroes of $f(x)=2 x^2+8 x-8$, then
→If $A M$ and $P N$ are altitudes of $\triangle A B C$ and $\triangle P Q R$ respectively. If $\triangle A B C \sim \triangle P Q R$ and $A B^2: P Q^2=4: 9$, then $A M: P N=$
→$2(\sin^6\theta+\cos^6\theta)-3(\sin^4\theta+\cos^4\theta)$ is equal to:
→If $\sec \theta-\tan \theta=m$, then the value of $\sec \theta+\tan \theta$ is
→A card is drawn at random from a pack of 52 cards. The probability that the card is drawn is a black king.
If $\tan ^2 A=1+2 \tan ^2 B$, then $\frac{\cos ^2 A}{\cos ^2 B}=$
→