No, use 25 4s.
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44/4
To do the Four Fours challenge, you use exactly four fours, no more and no less and try to find every number form 1-100. You can use 4!, square root, 4/4, exponential, +,-,*, and division(fraction notation) For example 9 is: 4+4+4/4
(4!+.4)/.4 = 61
3*33.333... = 100
9/9 + 99 = 100