A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9494496 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 37 44 48 54 66 72 74 81 88 96 99 108 111 132 144 148 162 176 198 216 222 243 264 288 296 297 324 333 352 396 407 432 444 486 528 592 594 648 666 729 792 814 864 888 891 972 999 1,056 1,184 1,188 1,221 1,296 1,332 1,458 1,584 1,628 1,776 1,782 1,944 1,998 2,376 2,442 2,592 2,664 2,673 2,916 2,997 3,168 3,256 3,552 3,564 3,663 3,888 3,996 4,752 4,884 5,328 5,346 5,832 5,994 6,512 7,128 7,326 7,776 7,992 8,019 8,991 9,504 9,768 10,656 10,692 10,989 11,664 11,988 13,024 14,256 14,652 15,984 16,038 17,982 19,536 21,384 21,978 23,328 23,976 26,973 28,512 29,304 31,968 32,076 32,967 35,964 39,072 42,768 43,956 47,952 53,946 58,608 64,152 65,934 71,928 85,536 87,912 95,904 98,901 107,892 117,216 128,304 131,868 143,856 175,824 197,802 215,784 256,608 263,736 287,712 296,703 351,648 395,604 431,568 527,472 593,406 791,208 863,136 1,054,944 1,186,812 1,582,416 2,373,624 3,164,832 4,747,248 and 9,494,496, with no remainder.
Since 9,494,496 cannot be divided by just 1 and 9,494,496, it is not a prime number.