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**What are the primes under 100?**

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97...

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**36 Factors, Multiples ...and Primes PRIME FACTOR DECOMPOSITION**

This is the process whereby a number is expressed as a product of its prime factors. Example: Express the following numbers as products of their prime factors. 36 36 60 24 770 36 = 2 x 2 x 3 x 3 = 22 x 32 2 18 2 9 3 3

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**60 Factors, Multiples ...and Primes PRIME FACTOR DECOMPOSITION**

This is the process whereby a number is expressed as a product of its prime factors. Example: Express the following numbers as products of their prime factors. 60 36 60 24 770 60 = 2 x 2 x 3 x 5 = 22 x 3 x 5 2 30 2 15 3 5

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**24 Factors, Multiples ...and Primes PRIME FACTOR DECOMPOSITION**

This is the process whereby a number is expressed as a product of its prime factors. Example: Express the following numbers as products of their prime factors. 24 36 60 24 770 24 = 2 x 2 x 2 x 3 = 23 x 3 2 12 2 6 2 3

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**770 Factors, Multiples ...and Primes PRIME FACTOR DECOMPOSITION**

This is the process whereby a number is expressed as a product of its prime factors. Example: Express the following numbers as products of their prime factors. 770 36 60 24 770 770 = 2 x 5 x 7 x 11 10 77 2 5 7 11

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**Factors, Multiples ...and Primes PRIME FACTOR DECOMPOSITION**

This is the process whereby a number is expressed as a product of its prime factors. Exercise: Express the following numbers as products of their prime factors. 16 40 56 100 38 108 34 16 = 24 40 = 23 x 5 56 =23 x 7 100 = 22 x 52 38 = 2 x 19 108 = 22 x 33 34 = 2 x 17

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Factors, Multiples ...and Primes HCF using PRIME FACTORS

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