Q: Is 761,720 a Prime Number?
A: No, 761,720 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 761720 can be evenly divided by 1 2 4 5 8 10 20 40 137 139 274 278 548 556 685 695 1,096 1,112 1,370 1,390 2,740 2,780 5,480 5,560 19,043 38,086 76,172 95,215 152,344 190,430 380,860 and 761,720, with no remainder.
Since 761,720 cannot be divided by just 1 and 761,720, it is not a prime number.