Q: Is 145,920 a Prime Number?
A: No, 145,920 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 145920 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 64 76 80 95 96 114 120 128 152 160 190 192 228 240 256 285 304 320 380 384 456 480 512 570 608 640 760 768 912 960 1,140 1,216 1,280 1,520 1,536 1,824 1,920 2,280 2,432 2,560 3,040 3,648 3,840 4,560 4,864 6,080 7,296 7,680 9,120 9,728 12,160 14,592 18,240 24,320 29,184 36,480 48,640 72,960 and 145,920, with no remainder.
Since 145,920 cannot be divided by just 1 and 145,920, it is not a prime number.