80 is an even number, thus it is divisible by 2; 80/2 = 40. 40 is also even, so it too is divisible by 2; 40/2 = 20. The same applies to 20; 20/2 = 10, and to 10; 10/2 = 5. Since both 2 and 5 are prime numbers, the prime factorization of 80 is 24 X 5.
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80 as a product of prime numbers can be expressed as: 2x2x2x2x5
The prime factorization of 80 is 2^4 * 5. This means that 80 can be expressed as the product of the prime numbers 2 and 5 raised to certain powers. In this case, 2 is raised to the power of 4 and 5 is raised to the power of 1.
No, the product of two prime numbers is unique.
The product of two prime numbers will be composite.
2 x 37 = 74 As the product is an even number one of the prime numbers must be 2. Then just check all the even numbers between 70 and 80 that is double a prime number: 74 = 2 x 37.