Q: Is 243,620 a Prime Number?
A: No, 243,620 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 243620 can be evenly divided by 1 2 4 5 10 13 20 26 52 65 130 260 937 1,874 3,748 4,685 9,370 12,181 18,740 24,362 48,724 60,905 121,810 and 243,620, with no remainder.
Since 243,620 cannot be divided by just 1 and 243,620, it is not a prime number.