
Write the smallest digit and the greatest digit in the blank space of each of the following numbers so that the number formed is divisible by :
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Important Questions on Playing with Numbers
Write a digit in the blank space of each of the following numbers so that the number formed is divisible by

Write a digit in the blank space of each of the following numbers so that the number formed is divisible by

Here are two different factor trees for Write the missing numbers.

Here are two different factor trees for Write the missing numbers.

HCF of co-prime numbers and was found as follows by factorization:
and since there is no common prime factor, so HCF of and is . Is the answer correct? If not, what is the correct HCF?



The number of distinct prime factors of the smallest -digit number is:
