Q: Is 631,120 a Prime Number?
A: No, 631,120 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 631120 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 23 28 35 40 46 49 56 70 80 92 98 112 115 140 161 184 196 230 245 280 322 343 368 392 460 490 560 644 686 784 805 920 980 1,127 1,288 1,372 1,610 1,715 1,840 1,960 2,254 2,576 2,744 3,220 3,430 3,920 4,508 5,488 5,635 6,440 6,860 7,889 9,016 11,270 12,880 13,720 15,778 18,032 22,540 27,440 31,556 39,445 45,080 63,112 78,890 90,160 126,224 157,780 315,560 and 631,120, with no remainder.
Since 631,120 cannot be divided by just 1 and 631,120, it is not a prime number.