Q: Is 242,840 a Prime Number?
A: No, 242,840 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 242840 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 467 520 934 1,868 2,335 3,736 4,670 6,071 9,340 12,142 18,680 24,284 30,355 48,568 60,710 121,420 and 242,840, with no remainder.
Since 242,840 cannot be divided by just 1 and 242,840, it is not a prime number.