A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9248460 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 71 78 130 142 156 167 195 213 260 284 334 355 390 426 501 668 710 780 835 852 923 1,002 1,065 1,420 1,670 1,846 2,004 2,130 2,171 2,505 2,769 3,340 3,692 4,260 4,342 4,615 5,010 5,538 6,513 8,684 9,230 10,020 10,855 11,076 11,857 13,026 13,845 18,460 21,710 23,714 26,052 27,690 32,565 35,571 43,420 47,428 55,380 59,285 65,130 71,142 118,570 130,260 142,284 154,141 177,855 237,140 308,282 355,710 462,423 616,564 711,420 770,705 924,846 1,541,410 1,849,692 2,312,115 3,082,820 4,624,230 and 9,248,460, with no remainder.
Since 9,248,460 cannot be divided by just 1 and 9,248,460, it is not a prime number.