how determine the number is prime or composite
Answers
Answer:
A prime number has exactly two factors — 1 and the number itself. For example, the number 5 is prime because its only two factors are 1 and 5. A composite number has at least three factors. For example, the number 4 has three factors: 1, 2, and 4.
Step-by-step explanation:
Hope it's being helpful to you
Q. What are prime numbers and composite numbers?
★ Prime Number:
A prime number is the one which has exactly two factors, which means, it can be divided by only “1” and itself. But “1” is not a prime number.
Example of Prime Number:
3 is a prime number because 3 can be divided by only two number’s i.e. 1 and 3 itself.
3/1 = 3
3/3 = 1
In the same way, 2, 5, 7, 11, 13, 17 are prime numbers.
★ Composite Number:
A composite number has more than two factors, which means apart from getting divided by number 1 and itself, it can also be divided by at least one integer or number. We don’t consider ‘1’ as a composite number.
Example of Composite Number:
12 is a composite number because it can be divided by 1, 2, 3, 4, 6 and 12. So, the number ‘12’ has 6 factors.
12/1 = 12
12/2 =6
12/3 =4
12/4 =3
12/6 =2
12/12 =1