A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5876472 can be evenly divided by 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 49 56 57 76 84 98 114 133 147 152 168 196 228 263 266 294 392 399 456 526 532 588 789 798 931 1,052 1,064 1,176 1,578 1,596 1,841 1,862 2,104 2,793 3,156 3,192 3,682 3,724 4,997 5,523 5,586 6,312 7,364 7,448 9,994 11,046 11,172 12,887 14,728 14,991 19,988 22,092 22,344 25,774 29,982 34,979 38,661 39,976 44,184 51,548 59,964 69,958 77,322 103,096 104,937 119,928 139,916 154,644 209,874 244,853 279,832 309,288 419,748 489,706 734,559 839,496 979,412 1,469,118 1,958,824 2,938,236 and 5,876,472, with no remainder.
Since 5,876,472 cannot be divided by just 1 and 5,876,472, it is not a prime number.