4, 8, 10, 16, 20, 40, 80
No primes are composite. The prime factors of 80 are 2 and 5.
Composite factors of 80 : 4, 8, 10, 16, 20, 40, 80 Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
Prime factors of 80: 2 and 5 Composite factors of 80: 4, 8, 10, 16, 20, 40, 80
The composite factors of 320 are 4, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
The composite factors of 22 are 1 and 22.
All of them except 79 which is a prime number because it has only two factors which are itself and one
The only composite factor of 65 is 65. The composite factors of 80 are 4, 8, 10, 16, 20, 40, 80
ANSWER: 70 and 80 are not prime numbers. They are composite numbers:70 is a composite number because the factors of 70 other 1 and itself (70) are 2, 5, 7, 10, 14, and 35.80 is also a composite number because the factors of 80 other 1 and itself (80) are 2, 4, 5, 8, 10,16, 20, and 40.
They are the numbers that have more than two factors in them.
All numbers have factors. Some factors are prime numbers, some are composite numbers. A factor that is a composite number is a composite factor.
83 doesn't have any composite factors.
All composite numbers have more than two factors.