Q: Is 145,320 a Prime Number?
A: No, 145,320 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 145320 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 173 210 280 346 420 519 692 840 865 1,038 1,211 1,384 1,730 2,076 2,422 2,595 3,460 3,633 4,152 4,844 5,190 6,055 6,920 7,266 9,688 10,380 12,110 14,532 18,165 20,760 24,220 29,064 36,330 48,440 72,660 and 145,320, with no remainder.
Since 145,320 cannot be divided by just 1 and 145,320, it is not a prime number.