Q: Is 478,380 a Prime Number?
A: No, 478,380 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 478380 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 67 68 70 84 85 102 105 119 134 140 170 201 204 210 238 255 268 335 340 357 402 420 469 476 510 595 670 714 804 938 1,005 1,020 1,139 1,190 1,340 1,407 1,428 1,785 1,876 2,010 2,278 2,345 2,380 2,814 3,417 3,570 4,020 4,556 4,690 5,628 5,695 6,834 7,035 7,140 7,973 9,380 11,390 13,668 14,070 15,946 17,085 22,780 23,919 28,140 31,892 34,170 39,865 47,838 68,340 79,730 95,676 119,595 159,460 239,190 and 478,380, with no remainder.
Since 478,380 cannot be divided by just 1 and 478,380, it is not a prime number.