Topic Details (Notes format)

How to Perform Prime Factorization

Subject: Mathematics

Book: Maths Mastery

Prime factorization is the process of breaking a number down into the product of its prime factors. For example, 60 can be factorized as 2 × 2 × 3 × 5, or 2² × 3 × 5. Common methods include repeatedly dividing by the smallest prime until the result is 1. Prime factorization underpins concepts like Greatest Common Divisor (GCD) and Least Common Multiple (LCM). It is extremely useful in simplifying fractions, analyzing cryptographic algorithms, and understanding integer properties. Regular practice with small to large numbers strengthens your factoring agility and cements foundational number theory skills.

Practice Questions

If a:b = 5:7 and b:c = 6:11, what is a:c?

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What is the sum of all even numbers between 1 and 50?

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A number is increased by 20% and then decreased by 20%. What is the net change?

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What is the LCM of 15 and 20?

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If a:b = 7:9 and b:c = 5:6, what is a:c?

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A man spends 75% of his income and saves Rs. 600. What is his total income?

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What is the slope of a line passing through the points (2, 3) and (4, 7)?

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If sin(A) = 3/5 and cos(B) = 5/13, where A and B are acute angles, what is sin(A+B)?

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A train 150 m long passes a pole in 15 seconds. What is its speed?

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What is the greatest common divisor (GCD) of 36 and 48?

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