PRIME FACTORS

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Finding the prime factors of a number

Example. Find the prime factors of 30.

30=10x3.  Here , 10 and 3 are factors of 30.

The number 10 can be written as a product of its factors as : 2 x 5. Thus, the prime factors of 30 are :

30 = 2 x 5 x 3. ( 2, 5, 3are prime numbers.)

Finding the prime factors of a number is the same as writing a number as a product of its prime factors. 

Tests of divisibility are useful in finding out prime factors.

The amount of VAT

vat is a new method of realising tax on the sale/ purchase of  goods.

A manufacturing company sold a commodity to 

its distributor for Rs. 22, 000 including VAT. 

The distributor sold the commodity to a retailer 

for Rs. 22, 000 (excluding tax) and the retailer sold it to the consumer for Rs. 25, 000 plus tax under VAT. 

If the rate of tax at each stage is 10%, 

what was the:

i) Sale price of the commodity 

for the manufacturer?

ii) The amount of VAT paid by the retailer?