Q: Is 561,380 a Prime Number?
A: No, 561,380 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 561380 can be evenly divided by 1 2 4 5 10 20 28,069 56,138 112,276 140,345 280,690 and 561,380, with no remainder.
Since 561,380 cannot be divided by just 1 and 561,380, it is not a prime number.