Q: Is 629,440 a Prime Number?
A: No, 629,440 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 629440 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 281 320 448 560 562 1,120 1,124 1,405 1,967 2,240 2,248 2,810 3,934 4,496 5,620 7,868 8,992 9,835 11,240 15,736 17,984 19,670 22,480 31,472 39,340 44,960 62,944 78,680 89,920 125,888 157,360 314,720 and 629,440, with no remainder.
Since 629,440 cannot be divided by just 1 and 629,440, it is not a prime number.