Q: Is 673,440 a Prime Number?
A: No, 673,440 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 673440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 61 69 80 92 96 115 120 122 138 160 183 184 230 240 244 276 305 345 366 368 460 480 488 552 610 690 732 736 915 920 976 1,104 1,220 1,380 1,403 1,464 1,830 1,840 1,952 2,208 2,440 2,760 2,806 2,928 3,660 3,680 4,209 4,880 5,520 5,612 5,856 7,015 7,320 8,418 9,760 11,040 11,224 14,030 14,640 16,836 21,045 22,448 28,060 29,280 33,672 42,090 44,896 56,120 67,344 84,180 112,240 134,688 168,360 224,480 336,720 and 673,440, with no remainder.
Since 673,440 cannot be divided by just 1 and 673,440, it is not a prime number.