V K Raman and S N Sharma Solutions for Exercise 3: CONCEPT REVISION TEST

A number is a multiple of itself.

Any even number above $2$ can be expressed as the sum of two primes.

When a number is divisible by two co-primes, it is divisible by their product.

$1$ is the H.C.F. of co-primes.

The product of three numbers is equal to the product of their H.C.F. and L.C.M.

A prime number cannot be expressed in exponential form.

The H.C.F of $222,333$ and $444$ is _____.

The L.C.M. of $10000,20000$ and $40000$ is _____.