Q: Is 261,744 a Prime Number?
A: No, 261,744 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 261744 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 19 21 24 28 38 41 42 48 56 57 76 82 84 112 114 123 133 152 164 168 228 246 266 287 304 328 336 399 456 492 532 574 656 779 798 861 912 984 1,064 1,148 1,558 1,596 1,722 1,968 2,128 2,296 2,337 3,116 3,192 3,444 4,592 4,674 5,453 6,232 6,384 6,888 9,348 10,906 12,464 13,776 16,359 18,696 21,812 32,718 37,392 43,624 65,436 87,248 130,872 and 261,744, with no remainder.
Since 261,744 cannot be divided by just 1 and 261,744, it is not a prime number.