Q: Is 142,740 a Prime Number?
A: No, 142,740 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 142740 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 61 65 78 90 117 122 130 156 180 183 195 234 244 260 305 366 390 468 549 585 610 732 780 793 915 1,098 1,170 1,220 1,586 1,830 2,196 2,340 2,379 2,745 3,172 3,660 3,965 4,758 5,490 7,137 7,930 9,516 10,980 11,895 14,274 15,860 23,790 28,548 35,685 47,580 71,370 and 142,740, with no remainder.
Since 142,740 cannot be divided by just 1 and 142,740, it is not a prime number.