The prime factorization of 9999900001 is:
$$ 9999900001 = 7\cdot13\cdot211\cdot241\cdot2161 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 9999900001 can be written as 7 × 1428557143. |
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| 1428557143 can be written as 13 × 109889011. |
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| 109889011 can be written as 211 × 520801. |
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| 520801 can be written as 241 × 2161. |
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| The end nodes are the prime factors of the number 9999900001. |
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