Q: Is 161,880 a Prime Number?
A: No, 161,880 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 161880 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 71 76 95 114 120 142 152 190 213 228 284 285 355 380 426 456 568 570 710 760 852 1,065 1,140 1,349 1,420 1,704 2,130 2,280 2,698 2,840 4,047 4,260 5,396 6,745 8,094 8,520 10,792 13,490 16,188 20,235 26,980 32,376 40,470 53,960 80,940 and 161,880, with no remainder.
Since 161,880 cannot be divided by just 1 and 161,880, it is not a prime number.