# Composite Numbers

## Trending Questions

**Q.**

Write all the prime numbers between $1$ to $20$.

**Q.**

Number of prime numbers between $1$ to $50$ are

$18$

$12$

$15$

$20$

**Q.**

The HCF of two prime numbers is always equal to their product.

TRUE

FALSE

**Q.**

On dividing 59761 by a certain number , the quotient is 189 and the remainder is 37. Find the divisor.

**Q.**

Odd one out:

$PRV,LMP,DGL,BEL$

**Q.**Can you instantly find the greatest and the smallest numbers in this row?

382, 4972, 18, 59785, 750.

Was that easy? Why was it easy?

**Q.**Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers

**Q.**Find the largest number which 615 and 963 leaving remainder 6 in each case.

**Q.**

How many composite numbers are between $1$ and $50$?

**Q.**

- 6
- 5
- 4
- 3

**Q.**

Find the list of all composite numbers between 100 and 110 inclusive.

- 100, 102, 104, 105, 106, 108, 110
- 100, 103, 104, 105, 106, 108, 110
- 100, 102, 107, 105, 106, 108, 110
- 100, 102, 104, 105, 106, 109, 110

**Q.**Find the value of p and q, so that the prime factorisation of 2520 can be expressed as 23×3p×q×7.

**Q.**The numbers having only 1 and itself as its factors are called prime numbers.

- True
- False

**Q.**Beena has one dozen of bangles and Teena has three dozens of bangles. Teena gave half dozen of bangles to Beena. How many bangles does Beena have now?

- 18
- 12
- 1.5 dozen
- 36

**Q.**

Write all the composite numbers between the following numbers:

$70$ and $95$

**Q.**

Write five consecutive composite numbers between $150$ and $250$ such that there are no two prime numbers between them .

**Q.**

**How many prime numbers are there between **$1$**to **$100$

$12$

$15$

$25$

$20$

**Q.**What are Composite Number ?

**Q.**Can you instantly find the greatest and the smallest numbers in this row?

1473, 89423, 100, 5000, 310.

Was that easy? Why was it easy?

**Q.**

Is the product of any two even numbers always an even number?

**Q.**

Express $66$ as a sum of two odd primes.

**Q.**

The product of three odd numbers is odd.

- True
- False

**Q.**Find the prime numbers from the following.

30, 31, 32, 33, 34, 35, 36, 37, 38, 39.

- 32 and 39
- 30 and 34
- 31 and 37
- 35 and 37

**Q.**

Question 140

Fill in the blank to make the statement true.

The numbers having more than two factors are called

**Q.**

The digit in the ones place of a number is $5$ and the number is greater than$10$. Will it be a prime number or a composite number?

**Q.**

One-third of a number added to one-fifth gives 32. Find the number.[3 MARKS]

**Q.**

The least value of HCF possible for any two numbers is

**Q.**

Find the HCF of the following numbers by prime factorization method 183, 793, 976

**Q.**

The largest 3 digit composite number is 999.

1000

999

**Q.**2 is the only even prime number.

- True
- False