Manisha Paul Solutions for Chapter: Factors and Multiples, Exercise 1: Worksheet - 11

Two numbers are said to be _____ if they don't have a common factor other than $1$.
 

H.C.F. of two numbers is a _____ of their L.C.M.
 

The smallest perfect number is _____ .

_____ is the greatest prime number less than $20$.
 

The only two consecutive whole numbers which are prime numbers are _____ and $3$.
 

The successive prime numbers differing by $2$ are called prime _____.
 

The greatest $2$-digit even multiple of $5$ is _____.
 

Two numbers whose L.C.M. is $4$ and sum is $5$ are _____ and $1$ .