Q: Is 1,188,520 a Prime Number?
A: No, 1,188,520 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 1188520 can be evenly divided by 1 2 4 5 8 10 20 40 43 86 172 215 344 430 691 860 1,382 1,720 2,764 3,455 5,528 6,910 13,820 27,640 29,713 59,426 118,852 148,565 237,704 297,130 594,260 and 1,188,520, with no remainder.
Since 1,188,520 cannot be divided by just 1 and 1,188,520, it is not a prime number.