Q: Is 71,440 a Prime Number?
A: No, 71,440 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 71440 can be evenly divided by 1 2 4 5 8 10 16 19 20 38 40 47 76 80 94 95 152 188 190 235 304 376 380 470 752 760 893 940 1,520 1,786 1,880 3,572 3,760 4,465 7,144 8,930 14,288 17,860 35,720 and 71,440, with no remainder.
Since 71,440 cannot be divided by just 1 and 71,440, it is not a prime number.