The numbers 5, 7, 11 and 13 are prime.
all of these are except 4. 4 is not a prime number!
3*3*4
3 is a prime number. 4 and 10 are both composite numbers having 2 as a factor.
a prime number has no factors other than one and itself 4:1,2,4 10:1,2,5,10 3:1,3 3 is the prime number!!!! it's only factors are one and itself!!!!
no, 12 can be made by 2 and 6, 3 and 4 and 15 can be made from 3 and 5, etc
The numbers 5, 7, 11 and 13 are prime.
The prime numbers from 1 to 4 are 2 and 3.
No, 12 and 15 aren't relatively prime, because they both share as a prime factor 3. Dividing both12 and 15 by 3 gives 4 and 5 respectively. Consecutive numbers are always coprime. Coprime numbers are relatively prime to each other, as they share no prime factors, for example 33 and 35,
No.
The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The prime numbers are 2, 3, and 5.
No, they are not.
5 and 11 are prime. The others are not (3 x 4 =12, 3 x 5 =15, 2 x 11 =22)
2 3 5 are prime numbers.
19 only has 2 factors - itself and 1. 15 has 4 factors - itself, 1, 3, and 5. Prime numbers can only have 2 factors. 19 is prime, 15 is composite.
3 x 5 = 15 15 x 4 = 60
1 1 2 1 2 3 1 2 3 4 1 4 3 2 5