3.Playing with Numbers Quiz

What is a number for which the sum of all its factors is equal to twice the number?

• Odd Number

• Perfect Number

• Prime Number

• Composite Number

What is a number whose only factors are 1 and the number itself?

• Even Number

• Odd Number

• Prime Number

• Composite Number

What is the smallest prime number which is even?

• 7

• 2

• 3

• 5

If a number has 0 in the ones place, then it is divisible by?

• 5

• 10

• 3

• 2

What is the highest common factor of two or more given numbers?

• Co-prime

• LCM

• Prime Factor

• HCF

What is a factor of a number?

• A multiple of the number

• An exact divisor of the number

• A co-prime number

• A prime number

What are two numbers called if they have only 1 as a common factor?

• Odd numbers

• Composite numbers

• Even numbers

• Co-prime numbers

If the sum of the digits of a number is divisible by 9, then the number itself is divisible by?

• 3

• 6

• 12

• 9

What is the lowest common multiple of two or more given numbers?

• LCM

• Co-prime

• HCF

• Prime Factor

What is a number with 3 or more digits divisible by if the number formed by its last two digits is divisible by 4?

• 2

• 4

• 6

• 8