Q: Is 7,121,016 a Prime Number?
A: No, 7,121,016 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 7121016 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 71 72 84 126 142 168 199 213 252 284 398 426 497 504 568 597 639 796 852 994 1,194 1,278 1,393 1,491 1,592 1,704 1,791 1,988 2,388 2,556 2,786 2,982 3,582 3,976 4,179 4,473 4,776 5,112 5,572 5,964 7,164 8,358 8,946 11,144 11,928 12,537 14,129 14,328 16,716 17,892 25,074 28,258 33,432 35,784 42,387 50,148 56,516 84,774 98,903 100,296 113,032 127,161 169,548 197,806 254,322 296,709 339,096 395,612 508,644 593,418 791,224 890,127 1,017,288 1,186,836 1,780,254 2,373,672 3,560,508 and 7,121,016, with no remainder.
Since 7,121,016 cannot be divided by just 1 and 7,121,016, it is not a prime number.