Q: Is 320,920 a Prime Number?
A: No, 320,920 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 320920 can be evenly divided by 1 2 4 5 8 10 20 40 71 113 142 226 284 355 452 565 568 710 904 1,130 1,420 2,260 2,840 4,520 8,023 16,046 32,092 40,115 64,184 80,230 160,460 and 320,920, with no remainder.
Since 320,920 cannot be divided by just 1 and 320,920, it is not a prime number.