1,2,4,5,10,20
9x4 = 32*x4 has (2+1)*(4+1) = 3*5 = 15 different factors. When an expression is written out as the product of its prime factors in index form, the number of factors can be calculated as the product of each index increased by one.
The only factors of 15 are 3 and 5 so the product of 3 * 5 is 15.
As a product of its prime factors: 5*11*41 = 2255
The product of all of the factors of 40 is (1, 2, 4, 5, 8, 10, 20, 40) : 2,560,000
5 and 125 are factors of 125. The product of 5 and 125 is 625.
The factors of (5 x 4) are 1, 2, 4, 5, 10, and 20 .
The factors of 10 are 1, 2, 5, and 10. The even factors of 10 are 2 and 10. The product of the even factors of 10 is 20.
As a product of its prime factors: 2*2*5*5*5*5 = 2500
As a product of its prime factors: 2*5*5*5 = 250
As a product of its prime factors: 5*5*5*11 = 1375
As a product of its prime factors: 2*5*7*7 = 490
As a product of its prime factors: 2*3*5*5 = 150