Q: Is 864,840 a Prime Number?
A: No, 864,840 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 864840 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 7,207 14,414 21,621 28,828 36,035 43,242 57,656 72,070 86,484 108,105 144,140 172,968 216,210 288,280 432,420 and 864,840, with no remainder.
Since 864,840 cannot be divided by just 1 and 864,840, it is not a prime number.