Q: Is 142,440 a Prime Number?
A: No, 142,440 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 142440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1,187 2,374 3,561 4,748 5,935 7,122 9,496 11,870 14,244 17,805 23,740 28,488 35,610 47,480 71,220 and 142,440, with no remainder.
Since 142,440 cannot be divided by just 1 and 142,440, it is not a prime number.