The prime factorization of 1111111111 is:
$$ 1111111111 = 11\cdot41\cdot271\cdot9091 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 1111111111 can be written as 11 × 101010101. |
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| 101010101 can be written as 41 × 2463661. |
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| 2463661 can be written as 271 × 9091. |
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| The end nodes are the prime factors of the number 1111111111. |
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