Q: Is 978,400 a Prime Number?
A: No, 978,400 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 978400 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 1,223 2,446 4,892 6,115 9,784 12,230 19,568 24,460 30,575 39,136 48,920 61,150 97,840 122,300 195,680 244,600 489,200 and 978,400, with no remainder.
Since 978,400 cannot be divided by just 1 and 978,400, it is not a prime number.