Q: Is 209,520 a Prime Number?
A: No, 209,520 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 209520 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 97 108 120 135 144 180 194 216 240 270 291 360 388 432 485 540 582 720 776 873 970 1,080 1,164 1,455 1,552 1,746 1,940 2,160 2,328 2,619 2,910 3,492 3,880 4,365 4,656 5,238 5,820 6,984 7,760 8,730 10,476 11,640 13,095 13,968 17,460 20,952 23,280 26,190 34,920 41,904 52,380 69,840 104,760 and 209,520, with no remainder.
Since 209,520 cannot be divided by just 1 and 209,520, it is not a prime number.