answersLogoWhite

0

Is the number 40 a prime or composite number?

Updated: 8/17/2019
User Avatar

Wiki User

7y ago

Best Answer

A Prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 40 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 10. (All numbers that end in a 0 are divisible by 10.) Therefore, 40 is a composite number.
Prime number: A number which has only 1 and itself as factors.

Examples:

2 is a prime number. Because 2 = 1 x 2
3 is also a prime number. 3 = 1 x 3

Numbers which are not prime are called composite numbers.

They can be written as a product of numbers other than 1 and themselves.

40 has some more factors other than 1 and 40.

40 = 2 x 20 = 5 x 8

So, it's a composite number.

User Avatar

Wiki User

7y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Is the number 40 a prime or composite number?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

40 prime number?

No because 40 is a composite number with more than two factors.


Is 40 prime or composite number.?

It is a composite number because it has more than two factors


40 composite or prime?

40 is composite.


Is 40 a prime or composite?

40 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 2 and 4 to name a few are factors of 40 that makes it a composite number.


What is the composite number of 40 and 50 that has the greatest number of prime factors?

42


Is 40 prime or composite why?

composite because it has more than two factors.


How can you tell that 40 is a prime or composite number?

It is a composite number because it's an even number and it has more than two factors


Is 40 a prime number?

no Prime numbers are divisible only by themselves and 1. 40/10 = 4, for example, so no it is not prime.


Is 40 a composite or a prime number?

no even number greater than 2 is prime so it is composite40 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 2 and 4 to name a few are factors of 40 that makes it a composite number.


Is 1029 a prime or composite?

It is not a prime number, it is a composite number.


Is 17 prime or composite number?

It is prime


Is 86 a prime or composite number?

86 is not a prime number, so is a composite.