Q: Is 155,120 a Prime Number?
A: No, 155,120 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 155120 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 277 280 554 560 1,108 1,385 1,939 2,216 2,770 3,878 4,432 5,540 7,756 9,695 11,080 15,512 19,390 22,160 31,024 38,780 77,560 and 155,120, with no remainder.
Since 155,120 cannot be divided by just 1 and 155,120, it is not a prime number.