ART

20

203 = 113 + 123 +133 + 143

220 - 1 = 3 * 5 * 5 * 11 * 31 * 41

20 = 4 ×(4 ÷ 4 + 4) = (44 − 4) ÷ √4

1020 - 1 = 3 * 3 * 11 * 41 * 101 * 271 * 3541 * 9091 * 27961

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