3x5x7
1 is not prime, so it can't be a prime factor.
It is: 3*5*7 = 105
As a product of its prime factors: 3*5*7 = 105
3 x 5 x 7 = 105
3 x 5 x 7 = 105
3 x 5 x 7 = 105
3 x 5 x 7
105*294 = 2*3*3*5*7*7*7
3, 5 and 7 are the prime factors of 105.
As a product of its prime factors: 3*5*7 = 105
The smallest prime factor of 105 is 3.