Q: Is 243,720 a Prime Number?
A: No, 243,720 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 243720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 677 1,354 2,031 2,708 3,385 4,062 5,416 6,093 6,770 8,124 10,155 12,186 13,540 16,248 20,310 24,372 27,080 30,465 40,620 48,744 60,930 81,240 121,860 and 243,720, with no remainder.
Since 243,720 cannot be divided by just 1 and 243,720, it is not a prime number.