Need of Factorisation

Q. Common prime factors of 36, 60 and 72 are

1. $2\times 2$
2. $2\times 3$
3. $3\times 3$
4. $3\times 2\times 2$

Q. Express 70 as the product of its prime factors.

1. $1\times 7\times 10$
2. $2\times 5\times 7$
3. $1\times 5\times 14$
4. $1\times 70$

Q. Which of the following is an irreducible form of 1122?

1. $2\times 9\times 9\times 17$
2. $2\times 3\times 11\times 17$
3. $2\times 3\times 9\times 17$
4. $3\times 3\times 11\times 17$

Q.

Find the prime factorization of 980

Q. $5(2x+1)(3x+5)÷(2x+1)=$______.

1. $5(3x+5)$
2. $(3x+5)$
3. $5(2x+1)$
4. $(2x+1)$

Q. Which of the following represents the prime factorisation of 124?

1. $1\times 4\times 31$
2. $2\times 2\times 31$
3. $1\times 2\times 62$
4. $1\times 2\times 31$

Q.

Write all the factors of: $96$.