Q: Is 722,000 a Prime Number?
A: No, 722,000 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 722000 can be evenly divided by 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 125 152 190 200 250 304 361 380 400 475 500 722 760 950 1,000 1,444 1,520 1,805 1,900 2,000 2,375 2,888 3,610 3,800 4,750 5,776 7,220 7,600 9,025 9,500 14,440 18,050 19,000 28,880 36,100 38,000 45,125 72,200 90,250 144,400 180,500 361,000 and 722,000, with no remainder.
Since 722,000 cannot be divided by just 1 and 722,000, it is not a prime number.