The prime factors of 120 are: 2, 3, 5
The prime factors of 120 are 2, 3 and 5.
prime factor, 5
GCF of a prime number and a composite number is 1 if the prime number is not a factor of the composite number. Here 103 is a prime number and 120 is a composite number. And 120 is not divisible by 103(or 103 is not a factor of 120). So, GCF(103,120) = 1
120 60,2 30,2,2 15,2,2,2 5,3,2,2,2
Five
As a product of its prime factors: 2*2*2*3*5 = 120
Use a factor tree. 120 60,2 30,2,2 15,2,2,2 5,3,2,2,2
2, 2, 2, 3, 5
60,230,2,215,2,2,25,3,2,2,2
Use a factor tree. 120 60,2 30,2,2 15,2,2,2 5,3,2,2,2
With a factor tree. 120 60,2 30,2,2 15,2,2,2 5,3,2,2,2