Q: Is 489,840 a Prime Number?
A: No, 489,840 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 489840 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 157 195 208 240 260 312 314 390 471 520 624 628 780 785 942 1,040 1,256 1,560 1,570 1,884 2,041 2,355 2,512 3,120 3,140 3,768 4,082 4,710 6,123 6,280 7,536 8,164 9,420 10,205 12,246 12,560 16,328 18,840 20,410 24,492 30,615 32,656 37,680 40,820 48,984 61,230 81,640 97,968 122,460 163,280 244,920 and 489,840, with no remainder.
Since 489,840 cannot be divided by just 1 and 489,840, it is not a prime number.