Q: Is 387,920 a Prime Number?
A: No, 387,920 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 387920 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 373 520 746 1,040 1,492 1,865 2,984 3,730 4,849 5,968 7,460 9,698 14,920 19,396 24,245 29,840 38,792 48,490 77,584 96,980 193,960 and 387,920, with no remainder.
Since 387,920 cannot be divided by just 1 and 387,920, it is not a prime number.