Standard X

Q. The sum of all the prime factors of $m$ is 9. Find the number $m$.

1. 15
2. 18
3. 28
4. 12

Q. The largest prime factor of 24 is .

1. 8
2. 7
3. 5
4. 3

Q.

If a movie ticket costs Rs 75, how many friends can watch the movie if they have a total of Rs 1500?

1. 15

2. 41

3. 20

4. 37

Q. If 26 is a factor of a number, then 13 is certainly a prime factor of the same number.

1. True
2. False

Q.

The area of a rectangular garden is 256 square meters. List all possible whole number dimensions that the garden can have. [2 MARKS]

Q. In prime factorization, we express a number as product of its prime factors.

1. True
2. False

Q.

What do you mean by prime factorization?

1. Writing a number as a product of any other numbers.

2. Writing a number as a product of only prime factors.

3. Writing a number as a sum of only prime factors.

4. Writing a number as a sum of any other numbers.

Q.

What are prime numbers? Find the prime factorization of 2048. [3 MARKS]

Q.

The prime factors of a number is given as 3 × 3 × 11 × 101. Which of the following is correct about the number?

1. It is an even number.

2. It is the smallest 4 digit odd number.

3. The number is 10000.

4. It is the greatest 4 digit number.

Q.

How many pizzas do you need to feed 12 people three slices each, if each pizza has six slices?

1. 10 Pizzas

2. 12 Pizzas

3. 6 Pizzas

4. 9 Pizzas