Composite
1,2,3,5,6,10,15,30
26
All of them except for 31, 37, 41, 43 and 47 which are prime numbers.
111*3
None. it's prime.
Ninety-seven is a prime; the remainder of the nineties are composites.
1
no.
1 is neither.
20: Prime = 2 x 2 x 5, composites 4 and 10; 30: Prime = 2 x 3 x 5, composites 6, 10 & 15. GCF = 2 x 5 ie 10.
500 is a composite number
97 is a prime number. 33, 63, and 25 are composites.
113 is a prime number. 111 and 115 are composites.