Q: Is 1,142,520 a Prime Number?
A: No, 1,142,520 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 1142520 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 9,521 19,042 28,563 38,084 47,605 57,126 76,168 95,210 114,252 142,815 190,420 228,504 285,630 380,840 571,260 and 1,142,520, with no remainder.
Since 1,142,520 cannot be divided by just 1 and 1,142,520, it is not a prime number.