280
140,2
70,2,2
35,2,2,2
7,5,2,2,2
23 * 5 * 7
It is: 2, 2, 2, 5 and 7
280 = 2 x 2 x 2 x 5 x 7
23 x 5 x 7
295 = 5 × 59
280 = 2 x 2 x 2 x 5 x 7
3 x 5 = 15
I think you mean that the prime factorization is 2 times 3 times 5. To solve, just perform the multiplication: 2x3x5=30
2*2*2*5*72 x 2 x 2 x 5 x 7 = 280
The prime factorization of 212 is 2 x 2 x 53. 16 is not a factor of 212.
As a product of its prime factors: 3*3*3*5*7 = 945
2 x 2 x 5 x 11