Q: Is 1,242,240 a Prime Number?
A: No, 1,242,240 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 1242240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 647 960 1,294 1,920 1,941 2,588 3,235 3,882 5,176 6,470 7,764 9,705 10,352 12,940 15,528 19,410 20,704 25,880 31,056 38,820 41,408 51,760 62,112 77,640 82,816 103,520 124,224 155,280 207,040 248,448 310,560 414,080 621,120 and 1,242,240, with no remainder.
Since 1,242,240 cannot be divided by just 1 and 1,242,240, it is not a prime number.