Q: Is 8,723,720 a Prime Number?
A: No, 8,723,720 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 8723720 can be evenly divided by 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 12,829 25,658 51,316 64,145 102,632 128,290 218,093 256,580 436,186 513,160 872,372 1,090,465 1,744,744 2,180,930 4,361,860 and 8,723,720, with no remainder.
Since 8,723,720 cannot be divided by just 1 and 8,723,720, it is not a prime number.