Q: Is 245,420 a Prime Number?
A: No, 245,420 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 245420 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,753 3,506 7,012 8,765 12,271 17,530 24,542 35,060 49,084 61,355 122,710 and 245,420, with no remainder.
Since 245,420 cannot be divided by just 1 and 245,420, it is not a prime number.