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Product of Two factors To find the number as the products of two factors, use the following steps : Step1: Write Prime factorisation of given number i.e. convert the number in the form ap bq cr where a ,b,c are prime numbers and the p,q,r are natural numbers as their...

Perfect cube factors: If a number is a perfect cube, then the power of the prime factors should be divisible by 3. Example 1:Find the number of factors of293655118 that are perfect cube? Solution: If a number is a perfect cube, then the power of the prime factors...

Factors that end with zero: Factors whose unit digit is zero or we can say factors which are divisible by 10. Example 1: Find the number of factors of 58800 that end with 0. Solution:  If a number ends with 0 then it must have at least 21 and 51. We first factorize...

Various Types of Factors Even factors: Even factors are the factors of number, which are divisible by 2. Example 1: Find the number of even factors of 58800? Solution: We first factorize 58800. 58800 = 24 315272 In this case we have to find number of even factors, an...

Shortcut for LCM  Type 1: Remainder is same when divided by distinct divisors If the Number N leaves the same remainder R when divided by the numbers a, b, c, then the number N = (LCM of (a, b, c) p +R, where p is any whole number. Type 2: Difference between the...

H.C.F. by Long Division Method To find the H.C.F. of the given number we will follow the following steps: We divide the bigger number by smaller one. Divide smaller number in step 1 with remainder obtained in step 1. Divide divisor of second step with remainder...

Another Method to calculate LCM Division method is another method to find the L.C.M. of numbers. First we will write the numbers in ascending order. Now we will divide the numbers with a common prime factor and continue the same till the time it is possible. We...