Did you know that multiplying any three-digit number by 7 × 11 × 13 results in a number that is exactly twice the original number repeated?
123 * 7*11*13 = 123123
563 * 7*11*13 = 563563
785 *7*11*13 = 785785
Did you know that multiplying any three-digit number by 7 × 11 × 13 results in a number that is exactly twice the original number repeated?
123 * 7*11*13 = 123123
563 * 7*11*13 = 563563
785 *7*11*13 = 785785
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