Q: Is 218,240 a Prime Number?
A: No, 218,240 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 218240 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 64 80 88 110 124 128 155 160 176 220 248 310 320 341 352 440 496 620 640 682 704 880 992 1,240 1,364 1,408 1,705 1,760 1,984 2,480 2,728 3,410 3,520 3,968 4,960 5,456 6,820 7,040 9,920 10,912 13,640 19,840 21,824 27,280 43,648 54,560 109,120 and 218,240, with no remainder.
Since 218,240 cannot be divided by just 1 and 218,240, it is not a prime number.