As a product of its prime factors: 3*5*7 = 105
The smallest prime factor of 105 is 3.
42 prime factors -----> 2,3,7 105 prime factors -----> 3,5,7 There is 3 and 7 in common : There fore 3*7 = 21; 21 is the greatest common factor.
7
Any multiple of 105.
The second one.
105 35,3 7,5,3
105 35,3 7,5,3
The smallest prime factor of 105 is 3.
1 is not prime, so it can't be a prime factor.
105 35,3 7,5,3
5 is a prime factor of 105,20 and 30
3 x 5 x 7 = 105
The greatest common factor of 105 and 56 is 7.
It is: 3*5*7 = 105
105 35,3 7,5,3
106 53 2 is 53 prime? if so, there you go. if not, you continue.
3 x 5 x 7 = 105