Q: Is 918,400 a Prime Number?
A: No, 918,400 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 918400 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 41 50 56 64 70 80 82 100 112 128 140 160 164 175 200 205 224 280 287 320 328 350 400 410 448 560 574 640 656 700 800 820 896 1,025 1,120 1,148 1,312 1,400 1,435 1,600 1,640 2,050 2,240 2,296 2,624 2,800 2,870 3,200 3,280 4,100 4,480 4,592 5,248 5,600 5,740 6,560 7,175 8,200 9,184 11,200 11,480 13,120 14,350 16,400 18,368 22,400 22,960 26,240 28,700 32,800 36,736 45,920 57,400 65,600 91,840 114,800 131,200 183,680 229,600 459,200 and 918,400, with no remainder.
Since 918,400 cannot be divided by just 1 and 918,400, it is not a prime number.