Q: Is 997,840 a Prime Number?
A: No, 997,840 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 997840 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 12,473 24,946 49,892 62,365 99,784 124,730 199,568 249,460 498,920 and 997,840, with no remainder.
Since 997,840 cannot be divided by just 1 and 997,840, it is not a prime number.