405 is composite.
Anything that is divisible by more than two numbers (itself and 1) is considered a composite number. Looking at the number, you can tell that it is divisible by 5 because it ends in a 5. There will be more factors, but finding one that is not 1 or itself will cause the number to be composite.
It is a composite number because 405 is divisible by 5.
405 is a composite number because it has more than 2 factors
In exponents: 34*5 = 405
405 = 3 x 3 x 3 x 3 x 5
4, composite. 67, prime.
no its composite 1,5,81,and 405
It is a composite number because 405 is divisible by 5.
Yes 405 is composite. Its factors are 1,5,81,and 405. There could be more but i don't know it! =)
405 is a composite number because it has more than 2 factors
In exponents: 34*5 = 405
405 = 3 x 3 x 3 x 3 x 5
Yes.
neither prime or composite
It is prime
It would be impossible to list them all, since numbers go on forever, but here are some of them: 2 - Prime 3 - Prime 4 - Composite 5 - Prime 6 - Composite 7 - Prime 8 - Composite 9 - Composite 10 - Composite 11 - Prime 12 - Composite 13 - Prime 14 - Composite 15 - Composite 16 - Composite 17 - Prime 18 - Composite 19 - Prime 20 - Composite 21 - Composite 22 - Composite 23 - Prime 24 - Composite 25 - Composite 26 - Composite 27 - Composite 28 - Composite 29 - Prime 30 - Composite 31 - Prime 32 - Composite 33 - Composite 34 - Composite 35 - Composite 36 - Composite 37 - Prime 38 - Composite 39 - Composite 40 - Composite 41 - Prime 42 - Composite 43 - Prime 44 - Composite 45 - Composite 46 - Composite 47 - Prime 48 - Composite 49 - Composite 50 - Composite
The prime numbers (factors) of 405 are: 3 and 5
4, composite. 67, prime.