2.Playing with Numbers Quiz

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

• Prime Number

• Odd Number

• Composite Number

• Perfect Number

Which number is neither a prime nor a composite number?

• 1

• 2

• 3

• 4

What is the smallest prime number which is even?

• 5

• 7

• 3

• 2

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

• 10

• 5

• 3

• 2

If the sum of the digits of a number is divisible by 3, then the number is divisible by which number?

• 2

• 3

• 5

• 6

What are two numbers having only 1 as a common factor called?

• Prime numbers

• Odd numbers

• Even numbers

• Co-prime numbers

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

• The lowest of their common factors

• The product of their common factors

• The highest of their common factors

• The sum of their common factors

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

• The sum of their common multiples

• The product of their common multiples

• The lowest of their common multiples

• The highest of their common multiples

What is a factor of a number?

• A prime number

• A composite number

• A multiple of that number

• An exact divisor of that number

What is true about every multiple of a given number?

• It is less than the given number

• It is a factor of the given number

• It is greater than the given number

• It is equal to the given number