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# What is it called when you write a composite number as a product of its primes?

Updated: 9/23/2023

Wiki User

8y ago

It is called the prime factorisation (or prime decomposition) of the composite number.

Wiki User

9y ago

Wiki User

8y ago

The prime factorization

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Q: What is it called when you write a composite number as a product of its primes?
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### What is the product of prime factors?

A composite number. The product of two primes is sometimes called a semiprime.

### The product of two primes?

Product of two prime numbers is a composite number. e.g. 2 x 3 = 6, 3 x 17 = 51 etc. But, why the result is a composite number? Definition of composite number makes it much clear: A number which can be expressed as the product of prime numbers is called a composite number. Also, it has more than two factors. So, product of two primes is a composite number.

### What is the meaning of a product of primes?

Expressing 15 as a product of its primes is 3 x 5 = 15 Composite numbers can be broken down into a product of prime numbers.

### What composite number that are prime?

A composite number is basically one that is NOT a prime - a composite number is a product of two or more primes.

### Why 161 is not a prime number?

It is the product of two primes and so is a composite.

### What is a composite number expressed as a product of primes?

That's known as a prime factorization.

### What is product of primes for 74?

Assuming you are referring to the prime factors of the number, the product of the prime factors of any composite number is equal to the number itself.

### What is a product of primes?

That's a prime factorization.

### Is 39 prime composite or neither?

The number 39 is a composite number. 39 = 3 x 13. Because 39 can be written as a product of primes (3 and 13), it is, by definition composite.

### Why is 3 not a composite number?

The only factors or divisors or 3 are 1 and the number 3 itself. The definition of a prime is a number whose only factors are 1 and itself so 3 fits this definition.Any composite number can be broken down into a product of primes. If you try, you will see there is not product of primes that equals 3.

### Is 77 a prime or composite number?

7 is a factor of 77 so it cannot be a prime. So it has to be composite.It is composite since 7 x 11 is 77 and those are both primes. That is to say, it is the product of two primes and that makes it composite.

### What is writing a number as a product of primes called?

Writing a number as the product of its prime factors is called prime factorization.