Principal Mohan Lal and J.C. Nijhawan Solutions for Chapter: Factors and Multiples, Exercise 4: Worksheet IV

Write the greatest $4$-digit number. Express it as a product of primes.

Write the smallest $4$-digit number and show its prime factorisation.

Express the given number as sum of two odd primes.

$18$

Express the given number as sum of two odd primes.

$32$

Express the number given as sum of two odd primes.

$66$

Express the number given as sum of two odd primes.

$90$

Express the given number as sum of three odd primes.

$41$

Express the given number as sum of three odd primes:

$23$