2 x 2 x 5 x 7 = 140
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It is 7 because as a product of its prime factors: 2*2*5*7 = 140 or as 22*5*7 = 140
140 70,2 35,2,2 7,5,2,2
What is the product of th e prime factor 344
47 as a product of prime factors is: 47. [47 is a prime number, so it only has itself as a prime factor - note 1 is NOT a prime number.]
As a product of its prime factors: 2*3*5 = 30