Q: Is 320,528 a Prime Number?
A: No, 320,528 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 320528 can be evenly divided by 1 2 4 8 13 16 23 26 46 52 67 92 104 134 184 208 268 299 368 536 598 871 1,072 1,196 1,541 1,742 2,392 3,082 3,484 4,784 6,164 6,968 12,328 13,936 20,033 24,656 40,066 80,132 160,264 and 320,528, with no remainder.
Since 320,528 cannot be divided by just 1 and 320,528, it is not a prime number.