Twin Primes

Q.

What are twin primes?

Write all pairs of twin primes between $50$ and$100$

Q.

Give three pairs of prime numbers whose difference is $2$.

Q.

What are twin-prime numbers? Write all the pairs of twin-prime numbers between $20$ and $60$.

Q.

Express $120$as the sum of twin primes

Q.

Write all pairs of twin primes between $40$ and $70$.

Q.

Express each of the following numbers as the sum of twin primes:

$24$

Q.

Write two pairs of twin primes between $20$and $50$.

1. $16$ and $26$, $19$and $29$

2. $29$ and $31$, $41$ and $43$

3. $11$ and $21$, $61$ and $71$

4. $15$ and $17$, $37$ and $39$

Q.

Fill in the blanks by choosing the appropriate word from the bracket.

Pair of _______ numbers having a difference of $2$ are called twin primes. (prime / co-prime)

Q.

Express following number as the sum of twin primes - :

$84=..........+...........$

Q.

Which is a pair of twin prime numbers?

1. 10, 11
2. 11, 13
3. 22, 24
4. 24, 28

Q. Which of the following are twin primes?

1. 13, 15
2. 5, 11
3. 21, 23
4. 11, 13

Q. Which of the following are twin primes?

1. 13, 17
2. 17, 19
3. 6, 4
4. 25, 27