Q: Is 387,660 a Prime Number?
A: No, 387,660 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 387660 can be evenly divided by 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 71 78 84 91 105 130 140 142 156 182 195 210 213 260 273 284 355 364 390 420 426 455 497 546 710 780 852 910 923 994 1,065 1,092 1,365 1,420 1,491 1,820 1,846 1,988 2,130 2,485 2,730 2,769 2,982 3,692 4,260 4,615 4,970 5,460 5,538 5,964 6,461 7,455 9,230 9,940 11,076 12,922 13,845 14,910 18,460 19,383 25,844 27,690 29,820 32,305 38,766 55,380 64,610 77,532 96,915 129,220 193,830 and 387,660, with no remainder.
Since 387,660 cannot be divided by just 1 and 387,660, it is not a prime number.