It is: 3^2 times 5^2 times 7^1 = 1575
32*52*7 = 1575
Factorization: 3*3*5*5*7
1575 Divide by three. 525,3 Divide by three. 175,3,3 Divide by five. 35,5,3,3 Divide by five. 7,5,5,3,3 Stop. 3 x 3 x 5 x 5 x 7 = 1575
As a product of its prime factors: 3*3*5*5*7 = 1575
1575 = 32 x 52 x 7
1575 = 3 * 3 * 5 * 5 * 73 x 3 x 5 x 5 x 7 = 1575
As a product of its prime factors: 3*3*5*5*7 = 1575
Composite. A prime number is defined as "a number not divisable by any integer other than itself and 1". It can be seen that 1575 can be divided by 5,15,25,75 and maybe more. None of these numbers are 1575 or 1 so the number is composite.
No, 1575 is not a prime number, because it can be divided by numbers other than 1 and itself. In particular without much thought you can see that it is divisible by 5.
Since the number ends with 5, 5 is a factor. 3 is also a factor. Divide it by those factors, then see if you can find additional factors.
7875
1575