can anyone explain how to express a number in its prime number and please give 2 examples
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Answers
Answer:
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Step-by-step explanation:
- When a composite number is written as a product of all of its prime factors
- we have the prime factorization of the number
- For example
- we can write the number 72 as a product of prime factors:
- 72 = 2 3 ⋅ 3 2 .
- The expression 2 3 ⋅ 3 2 is said to be the prime factorization of 72.
A prime number is a number that can only be divided by itself and 1 without remainders. Here we explain what exactly this means, give you a list of the prime numbers children need to know at primary school and provide you with some practice prime number questions and examples.
What is a prime number?
A prime number is a number greater than 1 with only two factors – themselves and 1.
A prime number cannot be divided by any other numbers without leaving a remainder.
An example of a prime number is 13. It can only be divided by 1 and 13. Dividing a prime number by another number results in numbers left over e.g. 13 ÷ 6 = 2 remainder 1.
15 is not an example of a prime number because it can be divided by 5 and 3 as well as by itself and 1.
15 is an example of a composite number because it has more than two factors.
Prime number examples
The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. There are 25 prime numbers between 1 and 100. Prime numbers can continue well past 100. For example, 21,577 is a prime number.