Number Theory

HCF and LCM

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HCF and LCM  How to find HCF and LCM? One method to find both HCF and LCM by using Prime factorization. Finding HCF using prime factorization Step 1: Find the prime factors of each given number. Step 2: Identify all the common prime factors of the given numbers. Step 3: Multiply the common factors.The product of these common […]

Order of Operations

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Order of Operations in Mathematics It’s easy to calculate an expression with only one mathematical operation. But what about when we have more than one mathematical operation how do we do the calculation so we can get the correct answer. In mathematics we have presented some rules so we can follow to help us with […]

Prime and composite numbers

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Prime and composite numbers   Prime numbers are numbers that have exactly two factors: one and the number itself. Composite numbers are numbers that have more than two factors.   Finding prime numbers Over 2000 years ago, a Greek mathematician called “Eratosthenes” made a simple tool for sorting out prime numbers. This tool is called […]

Multiples and Factors

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Multiples and Factors   Multiples You can think multiples of a number as the” times table” for that number. For example: the multiplies of 3 are: 3 × 1 = 3,  3 × 2 = 6,  3 × 3 = 9 and so on.   A multiple of a number is found when you multiply […]

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