Q: Is 145,520 a Prime Number?
A: No, 145,520 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 145520 can be evenly divided by 1 2 4 5 8 10 16 17 20 34 40 68 80 85 107 136 170 214 272 340 428 535 680 856 1,070 1,360 1,712 1,819 2,140 3,638 4,280 7,276 8,560 9,095 14,552 18,190 29,104 36,380 72,760 and 145,520, with no remainder.
Since 145,520 cannot be divided by just 1 and 145,520, it is not a prime number.